Benii Kenkyuujo

Haha ga Kabe ni Hamatte Ugokenakattanode

Kaseifu Yondara Haha ga Kita

Ki no Tsuyo~i Kangoshi Kaa-chan ga, Ore no Kanojo ni Natte kurete Hanashi

Suekko no Boku wa Mizugi Kaa-chan de Doutei Sotsugyou shichaimashita