Summer House, Their Invisible Memories

For living expenses, Chen Mo rented out his spare room, but unexpectedly, the gears of fate began to turn, opening up memories that had been dusty for many years. The eldest daughter Su Qinghan, who lives an idiot, the smiling Qingmei Wen Yu'an, the playmate Bai Ye, the club's vitality school girl Xing Yelin, and the cool school girl Lu Chenyan, all of them swarmed in and broke his peaceful life. Each of them has their own hidden secrets, and in the process of discovering these secrets, Chen Mo also discovered his forgotten memories, that summer and that girl... That summer, whose memories are these?