The middle child of the Takakura siblings and the only biological child in the Takakura family. He is uneasy at thoughts of performing any morally ambiguous deeds. He is assigned to obtain Ringo's diary, believing that it is the Penguindrum, and hesitates after being told to obtain it by any means necessary. He accompanies Ringo as she follows their teacher, and the two become close.
In the novel adaptation, Shoma is the narrator.