|Animal in Name||Horse (馬)|
|Relatives|| Daiki Mamura (younger brother)|
Daichi Mamura (younger brother)
Like his younger brothers, Daishi has light-colored hair that is a tad unkempt. It can also be assumed he too has blond hair and red eyes like Daiki and Daichi.
Daishi does not show much of a specific personality in the one page he appears in.
Like his younger brothers, he was present when their mother left them for another man she met at her work. Daishi also seems to have moved out of the Mamura household, as he was not seen whenever Suzume visited.
- He, like his two brothers, has the character "dai" (大) in his first name.
- Like his mother, as well as Sa-chan, he has only been seen in the final chapter—day.78—within Mamura's flashbacks.
- The animal in Daishi's name, horse (馬), is the "ma" in "Mamura." Though 馬 is normally read as "uma" when standalone, due to kanji having multiple readings, it is the "ma" in this case.
Yasuo Minamoto - Tanaka - Yada - Ririko Nekota - Yuyuka's father - Yuyuka's mother
Suzume's father - Daishi Mamura - Mamura's mother - Sa-chan - Samejima - Odawara