|Romanized name:||Tsuruyaga Otsuu|
|English name:||Otsuu Tsuruyaga|
|First Appearance:||Episode 1|
|Japanese VA:||Kawasumi, Ayako|
|English VA:||Clinkenbeard, Colleen|
|Korean VA:||Park, Seon Yeong|
She is a member of the Otogi Bank. She is the current Maid of the club and has an obsession with returning favours. This is because in her childhood, one of her close neighbors saved her from an incoming bus, and in doing so, lost his life. Because of this, she works hard to completely return any favours from those that help her. Ryoshi and the other members of the Otogi Bank eventually help her to get over this obsession of returning favours. She enjoys being a "maid" and for that reason she will not cosplay as anything else, as doing so causes her much distress.She is based on the crane from the Japanese tale Tsuru no Ongaeshi.