Rei Kiriyama
Rei profile pic
 Kanji 桐山 零
 Romaji Kiriyama Rei
 Nickname Zero
 Gender Male
 Age 18
 Hair Color Black
 Eye Color Green
 Height 170 cm
 Weight 52 kg
 Occupation Shōgi Player
Personal Status
 Status Alive
 Relative(s) Father
Masachika Kouda (adoptive father)
Kyouko Kouda (adoptive sister)
Ayumu Kouda (adoptive brother)
 Manga Chapter 1
 Anime Episode 1
 Seiyuu Kawanishi Kengo

Rei Kiriyama (桐山 零 Kiriyama Rei) is the main protagonist of the series. He is a 18 year old 5 dan in Shogi, who became a professional during middle school.


Rei has had a very traumatic childhood. He mentions he was bullied at school and in the neighborhood, and couldn't relate to the other children. After his parents and sister died in a traffic accident, he was taken care of by his father's friend Kōda and became his apprentice in shōgi. Through his step-father's tutelage, he became a professional shōgi player while still in middle school. Afterwards, he decided leave home, due to feeling guilty about his presence negatively affecting his foster family. After moving out, he starts living alone in an apartment at the city of Rokugatsu-chō. However, experiencing a desire to attend school, Rei later joined a high school after a one-year delay.


As a result of his traumatic childhood, Rei is socially reclusive and has many emotional scars that still plague him to this day. In everyday conversion, he is meek and shy, even speaking in keigo to those younger than him.

Citas Edit

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