Duet Diary

Martin craze is a Highschooler who's been suspended for bad behavior, lives a boring everyday life before summer break. But his life soon changes when he meets a girl oustide his house, who had yellow umbrella, Her name was Rean a friend or foe. both of them decides to write diary together without ever looking into each other pages, with one condition, one can only look into others page, if they miss to do there daily entry once.