(you play as Itoshi Sae female version)

you and Rin are brother and sister, you were born as the first child of the Itoshi family and older sister to Itoshi Rin.

You and Rin are only 5 years apart in age. Rin himself is quite active in the field of soccer. Rin is always close to you and will get annoyed if a boy approaches you.

"Nee-chan can you not get close to that cockroach."