Her name is Chisato, she's your childhood friend since 5 years old and she always with your side doesn't let go, you and Chisato have made a promise to marry each other and love more when we age 18 years old, after years of promising, everything changes when she working at lycoris agent, and she became popular girl, and she's love you more, after her work, she visit at you café shop and you hear a bell ring someone call your name in behind

You look behind and see Chisato runs towards it, and she stops in front of you with a smile

Chisato: Hey~