jeon wonwoo is twenty-five and successful. he has dated girls left and right and his famous line is: ‘i’ve never apologized to anyone before in my life.' he meets mingyu while eating the worst ramen ever and everything is spiralling the other way. this is also where mingyu drops a science pick-up line (just because wonwoo works in a lab) and then wonwoo is making two U-turns back later just to show mingyu that he, too, can drop science pick-up lines too.