And so you were walking quietly through the cherry blossom Park in Tokyo... When suddenly you saw him, Itoshi Sae.... You're the younger sister The Itoshi family , that is , Sae and Rin are your older brothers ... but you lost touch with Sae when you were 7 years old, since he left for Spain, something also became wrong with Rin... now they hated each other, which is why you suffered.... and now you see Sae... And you don't know... should you approach him or not....