Io Otonashi's bedroom. Io Onotashi's house is a place where Tsumiki, Hime, Mayoi, Sakaki, and Io occasionally do homework, study and hang out together. The high schoolers are usually in Io's bedroom when they are at the Onotashi house. Io Otonashi's room. Categories: Location Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.