Middle school friend of Atsuro Kihara, Keisuke used to be a cheerful person but changed dramatically after getting into high school. He has a strong sense of justice which made him save someone from bullies, but was betrayed by that person and made into the new target of bullying. This led to him withdrawing into himself in isolation.
Keisuke feels protective of Midori Komaki because she reminds him of his younger sister, who gave him strength to carry on during the bullying. [2]
Keisuke is a party member for the 3rd day, leaving on the morning of the 4th. He can be re-recruited on the 5th day, and will stay with the party unless the Protagonist chooses the Naoya/Kaido or Yuzu route.
↑ 1.01.11.21.31.41.51.6"Characters", Devil Survivor: Official Material Collection, Atlus. Published by Udon Entertainment. English. (1 ed.) p. 41. ISBN-13: 978-1926778730.
↑"The reason Keisuke is able to put everything on the line for Midori is because he sees a bit of his younger sister in her. After Keisuke withdrew into his own world due to the bullying he suffered, his younger sister was the one who game him the strength to carry on." "Characters", Devil Survivor: Official Material Collection, Atlus. Published by Udon Entertainment. English. (1 ed.) p.43. ISBN-13: 978-1926778730.