Please Twins!

Synopsis

Maiku Kamishiro is uncertain about his origins, with only an old photograph to go on—it shows a boy and a girl playing in a small pool in front of a blue house. Hoping to find answers, he moves into that same house and takes up work as a programmer. His quiet routine is disrupted when two girls arrive, each possessing a copy of that photograph, and both insist they are his twin siblings. Unable to determine which one is truly his sister, Maiku lets them both stay under his roof until the mystery is resolved.