خلاصه داستان : میتسو دانشجویی ـه که توی دوران دبیرستان به خاطر اولین دوست دچار ضربه روحی شده، حالا میتسو میخواد عشق جدیدی رو تجربه کنه، اما ناگهان با دوست سابقش، کائده، که به آپارتمانی در کنارش نقل مکان کرده، رو به رو میشه. پنج سال گذشته و کائده پیچیده تر شده، اما لبخند ملایمش همون ـه که...

Mitsu became a college student while dragging along the trauma of her first boyfriend and a broken heart in her years back in junior high school. She was thinking about going to college and finding a new love, but the person in the room next to hers is Kaede, her ex-boyfriend! It had been 5 years and he has become sophisticated and grown-up, but his gentle smile has not changed. Mitsu wants to forget her old love and enjoy university life, but she finds herself trapped between her grown-up ex-boyfriend and her best friend.