Megami Tensei Wiki

Keisuke Komatsubara, also known as Mareya Kujou, is a character from Persona -trinity soul-.



Persona -trinity soul-[]

Komatsubara was a neurologist whose fascination with the concept of Personas led him to perform increasingly dangerous experiments with his daughter, Ayane Komatsubara, to the point where she committed suicide while jumping from a research plane over the ocean. While she reappeared to haunt those researchers that experimented on her leading to the incident that caused the mass occurrence of Apathy Syndrome in Ayanagi City, he became obsessed with the idea of reviving her through the use of Persona. During the Apathy Crisis, he also took advantage of Ryo Kanzato's panic and used Jun Kanzato and Yuki Kanzato in an experimental surgery to merge their Persona under the pretense of saving Jun's life.

After the Apathy Crisis, Komatsubara began to work under the alias of Mareya Kujou, faking his death and allowing his own Persona to consume him to extend his own life. He founded the Marebito, largely made up of orphans from the destruction ten years earlier. Komatsubara convinced them they were strengthening their own Persona and encouraged them to continue consuming the Persona of others, creating the Reverse cases. He created the artificial life-form Kanaru Morimoto in order to discover powerful targets for them through Kagenuki.

As the series progresses to its climax, he reveals that Marebito were merely containers for the Persona he intended to use to revive the clones he had made of his daughter.


  • The name Keisuke means "open, begin" (啓) (kei) and "help, assist" (祐) (suke).
  • Keisuke's surname Komatsubara means "small" (小) (ko), "pine tree, fir tree" (松) (matsu) and "field, plain" (原) (hara/bara).

Alias Name[]

  • The name Mareya means "rare, uncommon, unusual, phenomenal" (稀) (mare) and "to be, also" (也) (ya).
  • Mareya's surname Kujou means "nine" (九) (ku) and "article" (条) (jou).


Characters Shin Kanzato - Ryo Kanzato - Jun Kanzato - Yuki Kanzato - Haruka Kanzato - Shigeru Kanzato - Takuro Sakakiba - Megumi Kayano - Yumi Tasaka - Noboru Inui - Kunio Ito - Eiko Nikaido - Tomohiro Narasaki - Touma Shikura - Yuji Kimoto - Soutarou Senou - Saki Tachibana - Taiichi Udo - Wakasa Kusu - Shiiba Kusu - Kanaru Morimoto - Keisuke Komatsubara - Ayane Komatsubara - Akihiko Sanada - Igor
Locations Ayanagi City
Terms Persona - Persona user - Apathy Syndrome - Kagenuki - Marebito - Persona Suppressors - Reverse cases - Ayanagi Investigation Squad - Sea of Souls
Albums Original Soundtrack
Songs "Breakin' Through" - "Found Me" - "Mellow Dream" - "Reverse the Destiny" - "Somewhere" - "Soul Drive"
Concerts Music Live 2008 - Music Live 2009 - Music Tour 2010 - Music Live 2012
Archive Episodes - The Sound of Christmas - Persona Radio