|Family and Relatives||Rin (older sister)|
Yotsuba (よつば) is one of the Rin's younger sisters. She is mentioned in Summer Radish Vacation!! 2.
Summer Radish Vacation!! 2Edit
In one of the possible scenes of the first appearance of Rin Tomaru test her name tried to guess the Rin's name, Rin replies that it is the wrong name and the name of her younger sister. She may be one of the Wataru's twelve younger sisters.
- It is unlikely that she is daughter of Kagura Inou.