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Kasumi Kagami (加賀見霞, Kagami Kasumi) is the elder sister of Kazuya Kagami, as well as the daughter of Kanaka Kagami and Kazuaki Kagami. With their mother gone and their father working all day, Kasumi has taken responsibility for most of the household work while watching over her brother.


Kasumi is a young woman with a long straight black hair. Beyond their different hair, she closely resembles her mother on her younger days, both in facial traits and in physique. Her attire is typically casual and simple.


Kasumi's only two years older than her brother, but she is mature and very independent, taking care of most of the house's affairs on her own, and comes off as a very reliable person despite her age. She is notorious for her "brother complex", and is suggested on more than ocassion that she has a romantic obsession for her younger brother Kazuya. She's constantly attending to any necessities he may have on the daily life, like cooking for him or waking him up on the mornings for school, coming off as closer to a mother than a sister. She's constantly watching over him and making sure that he doesn't go through any misfortunes, but she's also extremely obsessed with him and doesn't want to be separated from him. She's also shamelessly open about her incestuous obsession, often trying to get more intimate with him or pushing him to bath together, and she's been described by Kiriha as a "brother-holic". She's been like this since they were little, and she used to sleep and bath with him until he got old enough to refuse his sister's company, which greatly distressed Kasumi as she felt that he was entering in a "rebellious phase". She's quite a pervert, as even from a young age, she was "teaching" an innocent Kazuya about matters related to sexuality that were inappropriate for a boy of his age.

She does not get along well with Kiriha, as she dislikes her self-centered nature and often tries to make her do some housework. Fortunately for her, she's much better than her relatives at dealing with the Tsugumomo, and is the only one on the house that can keep her under control. She's diligent and works hard to cultivate an image as a dependable figure, so she does not mind the work it takes. She's very protective as well, quickly rushing to her brother's room whenever she hears a suspicious noise, especially if she believes Kazuya could be in danger. She was originally against the idea of accepting Kukuri and Kokuyou on their house, but she ended up being way more fond of Kukuri than she is of Kiriha.


Kasumi was born from the union between Kanaka Kagami and Kazuaki Kagami, two years prior to the birth of her brother. When she was 6 years old Kanaka was planning on making one of them her successor and Kasumi, who had never shown any enthusiasm in becoming an Exorcist, willingly accepted the role in order to protect Kazuya from her mother's rigorous training and the dangerous life of an Exorcist. While she was very talented, Kanaka was not quite satisfied with her performance, as she was looking for someone that would be able to match or perhaps even surpass her. However, Kazuya eventually showed a potential comparable to Kanaka's, leading to him being recruited for the training as well and making Kasumi's efforts worthless. In a period of only three years, Kasumi was no match for her brother and failed to keep up with their training.

Kasumi receives Saori

Following the events where Kazuya's memories were sealed after their mother was possessed by an Amasogi, Kukuri told her and Kazuaki everything about the incident. The family moved to a new house to prevent any memories from their old house from resurfacing. Filled with a desire to protect her brother, she secretly continued training without telling Kazuya. She was quickly recognized for her great ability and was gifted with the Hourglass Tsukumogami Saori, who became her partner when she was appointed as an Exorcist.[1]


Introduction Arc

Kasumi welcomes Kazuya home after he returns from school the day of Kiriha's reawakening, inviting him to join her in the bath but is rejected. The next morning Kazuya screams, prompting Kasumi to rush into his room, but Kazuya tells her it was nothing.[2] Later that day, Kasumi confronts Kazuya about the recent noises coming from his room, eventually storming into his room but finding nothing there. As Kazuya goes to take a bath, Kasumi offers to join him but is rejected.[3] Some time that day, Kiriha reintroduces herself to Kasumi and their father, unbeknownst to Kazuya.[4]

Hakusan Shrine Arc

Kasumi welcomes Chisato when she comes over to study with Kazuya, seeing her for the first time in a long time and not immediately recognizing her.[5] The next day as Kazuya leaves for school, their father tells Kazuya he will be home early to eat dinner together to which Kasumi tells him to stop yelling so early in the morning.[6]

Local Exorcist Arc

Some time later, as the family is eating dinner together, Kasumi grows suspicious of the extra food Kazuya is bringing upstairs, warning him of keeping pets since their dad is allergic. Kiriha remarks that Kazuya himself to be a dog already, causing Kasumi and her to argue while Kazuya is shocked that Kiriha is already acquainted with his family. Later that night, Kasumi reiterates to Kazuya they are not allowed to have pets when Kazuya invites some strays to their home, but is shocked when Kazuya reveals they are people.[4] Kazuya and Kiriha discuss with Kazuaki and Kasumi about allowing Kukuri and Kokuyou to stay at their home. While initially refusing, Kiriha convinces Kazuaki into allowing it, to Kasumi's surprise. Kasumi greets her brother the next morning.[7]

One day in the household, as Kiriha is lazing about watching television, Kasumi turns it off, chastising her, pointing out Kukuri who is doing housework to earn her keep and has Kiriha shave potatoes. Kasumi sends Kazuya to get some groceries with Kiriha and Kukuri joining him as they have finished their work.[8]

Sunao Sumeragi Arc

Some time later, after Kazuya was challenged by Sunao Sumeragi, Kasumi and Kukuri walk into Kazuya and Kiriha naked together in bed, causing both of them to freak out.[9] After Kazuya's duel, Kasumi is surprised to find Kazuya immobile and requiring Kukuri's help to feed him.[10]

Counselling Office Club Arc

Some time later, Kasumi bursts into Kazuya's room to prevent Kiriha from getting too intimate with Kazuya. Kasumi states she allowed the two to remain together to increase Kiriha's power, but warns her of crossing the line. Kiriha suggest the possibility they already have, prompting Kasumi to "inspect" Kiriha against her will.[11] The night after dealing with Mana Manaka's amasogi, Kiriha brings Kazuya home, paralyzed again from using Ascension. Kasumi and Kokuyou help Kazuya bathe and tend to his needs while he is immobile.[12]

Mayoiga Revolt Arc

When Kazuya and Kiriha have returned home after dealing with Wakana Wakisaka's amasogi, Kasumi, Kukuri and Kokuyou find Kiriha being unsusally affectionate to Kazuya. Later without Kazuya, Kiriha tells them that Wakana's amasogi had revealed the woman Kazuya likes the most is not Kiriha. All three of them get flustered thinking that it may possibly be them instead. The four confront Kazuya about this, but he refuses to reveal his answer. They Bakura put him to sleep and enter his dream to ascertain to he likes the most, revealing it to be a genderbent version of himself, a development which Kasumi seems fond of.[13]

One night, Taguri Kanayama arrives at their home with and injured Kokuyou and they explain she was attacked by assassins seeking to kill Kukuri. The group make plans to confront the assassins, with Kasumi tending to Kokuyou at Hakusan Shrine where Kukuri awaits her assailants.[14][15] Kukuri puts a barrier around Kasumi and Kokuyou as she fights her opponents. After the assassins are defeated, they return home, with Kasumi looking after Kazuya and Kokuyou.[16] Kasumi watches awkwardly as Taguri gets Kukuri drunk on sake after their victory.[17]

After Kiriha is destroyed by Kanaka, Kasumi arrives to save Kazuya from their mother.[18] Kasumi tells Kazuya they will buy him three years to get stronger to fight Kanaka, and she and Saori activate their time stopping barrier to seal Kanaka and themselves away.[19] She also seals away Kukuri's body, allowing for the possibility of Kukuri's revival later.


Natural Abilities

Expert Combatant: Befitting Kanaka's daughter, Kasumi was called a prodigy child since a young age and was described as being a talent seen only once per generation. She was personally trained by her mother for some years, resulting in her developing a considerable amount of fighting ability. She's quite skilled at martial arts and is physically strong, capable of fighting amasogi even bare-handed. Despite her impressive potential, she was never quite on the same level as her brother and mother, and would quickly fall behind to Kazuya's much faster progress. Even so, Kasumi is still able to land a hit on Kanaka, even knocking her back a bit.

Hourglass Tsugumomo

After becoming the owner of the Hourglass Tsugumomo Saori, she began training to use her to its full potential and earned access to her powerful and unique abilities.


  • Time Manipulation: Saori can manipulate the speed at which time passes within the range of her chosen area of effect, in which everyone inside the area of effect is affected equally, including the herself and her user. While this limits her potential uses, she's still capable of utilizing in a designated area where it only affects a single person or object, like slowing down enemies attacks or increasing Kasumi's own time to react to see through their opponent. As incredibly useful as this ability is, it comes with the drawback of having a time cost, which forces the user to sacrifice an equal amount of time of their own in exchange.[20]
    • Moment Enshrined (伽藍刹那(がらんせつな), Garan setsuna): An ability that creates a time stopping barrier. By surrounding a specific area in circles and performing an incantation, Kasumi and Saori are able to create a barrier that freezes the time inside for a determined period. At its greatest potential, Kasumi is able to make the time freezing barrier last as much as three years. It has the rather huge drawback of trapping the user and Tsugumomo Saori as well.[19]

Chapter Appearances

Chapter Appearances
Introduction Arc
1. Mother's Memento Debut
2. Master!? Appears
3. Library and Childhood Friend Absent
4. Library and Childhood Friend 2 Absent
Hakusan Shrine Arc
5. Curse Appears
6. Arm Wrestling Appears
7. Local Deity Absent
8. Divine Fury Absent
9. Watershed Absent
Local Exorcist Arc
10. Intensive Training Absent
11. Spacing Absent
12. Memories and Childhood Friends 1 Absent
13. Memories and Childhood Friends 2 Absent
14. Romero Special Appears
15. Kaneyama-san Appears
16. Letter, Pt. 1 Absent
17. Letter, Pt. 2 Absent
18. Letter, Pt. 3 Absent
19. One Day at the Kagami Home Appears
Sunao Sumeragi Arc
20. Fist Pt. 1 Absent
21. Fist Pt. 2 Absent
22. Nemesis Absent
23. Naked Blanket Roll Appears
24. Night Before the Confrontation Absent
25. Into a Dream Absent
26. Sunao vs Kazuya 1 Absent
27. Sunao vs Kazuya 2 Absent
28. Sunao vs Kazuya 3 Absent
29. Sunao vs Kazuya 4 Absent
30. Reward Appears
31. Memory Absent
32. Fake Marriage Part 1 Absent
33. Fake Marriage Part 2 Absent
34. Kazuya's Fist Absent
Counselling Office Club Arc
35. Counselling Office 1 Appears
36. Counselling Office 2 Absent
37. Rowdy Shirou-kun 1 Absent
38. Rowdy Shirou-kun 2 Absent
39. Rowdy Shirou-kun 3 Absent
40. Rowdy Shirou-kun 4 Absent
41. Breasts and Advisor Appears
Reversal Arc
42. Reversal! 1 Dream
43. Reversal! 2 Absent
44. Reversal! 3 Absent
45. Reversal! 4 Absent
46. Reversal! 5 Absent
47. Kirio in Top Form Absent
48. Sunao and Kotetsu Absent


  • The name Kasumi means "mist" (霞).
  • Kasumi's surname Kagami means "add, increase" (加) (ka), "congratulations, joy" (賀) (ga) and "see, hopes, chances, idea, opinion, look at, visible" (見) (mi).


  • When Kazuya was hypnotized by Osamu Osanai to reveal his unconscious desires, he burst out expressing all his repressed sexual repressions from living with many beautiful women, but Kasumi was notably the only one he didn't express lust for.



  1. Tsugumomo Manga: Chapter 84
  2. Tsugumomo Manga: Chapter 1
  3. Tsugumomo Manga: Chapter 2
  4. 4.0 4.1 Tsugumomo Manga: Chapter 14
  5. Tsugumomo Manga: Chapter 5
  6. Tsugumomo Manga: Chapter 6
  7. Tsugumomo Manga: Chapter 15
  8. Tsugumomo Manga: Chapter 19
  9. Tsugumomo Manga: Chapter 23
  10. Tsugumomo Manga: Chapter 30
  11. Tsugumomo Manga: Chapter 35
  12. Tsugumomo Manga: Chapter 41
  13. Tsugumomo Manga: Chapter 56
  14. Tsugumomo Manga: Chapter 58
  15. Tsugumomo Manga: Chapter 60
  16. Tsugumomo Manga: Chapter 61
  17. Tsugumomo Manga: Chapter 62
  18. Tsugumomo Manga: Chapter 70
  19. 19.0 19.1 Tsugumomo Manga: Chapter 71
  20. Tsugumomo Manga: Chapter 85

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