Ok I don't remember much , i read about a year ago . MC gains system and find out that in the world there are many awaken people like in game . He has a crush girl in his class and one day while walking he find a Loli who is theif and he allows her to steal him to level her up . some misunderstanding arises and on a class trip on bus he find that the Loli is his crush cousin or smtg . By the way, the system give him ridiculous tasks. like saying Iloveyou to many girls at once . (I can't remember correctly but this might have appeared in Webnovel Trial Read)