please help me find this manga

so like i suck at explaining but there was this manga where like there was this dude (black hair and glasses i think) and he used to go to his school library everyday and then one day this other dude who kinda looks like a delinquent (and also does fight when people mess with him)also starts coming to the library and yada yada they fall in love and then lmao the glasses dude doesnt want theother dude having sex when his familys home but they finally do it when thryre not home fjdksksAAAAAWHAT DO I EVEN SAY CJSKso yah if smthng clicks your mind tell me i need to finish it