Leveling Up My Isekai'd Abs

sung suwoo has it all – he’s handsome, strong, and popular. his only problem is he can’t grow abs no matter how much he trains! after being dumped by his girlfriend for having a flabby tummy, he gets isekai’d into a webcomic universe! can he successfully return if his only ticket back home is by becoming the hottest male character of the romance genre with s-rank abs?