Banana Bread Pudding

Now that Ira's older sister is getting married, who will take her to the bathroom after 10 p.m. and sing "Twinkle, Twinkle Little Star" outside the bathroom door in order to protect her from the beautiful, androgynous, child-eating clown? Will marrying a closeted gay man help?
Considered by many fans to be Ooshima's best work.