A guy was possessed by someone who has his hand grabbing the guy's heart. In the end the guy become a god.

i read a manga a while back and i cant remeberif it was a one shot or series and can't remeber the name. its basically a shoujo high school romance. the male lead is nicknamed a scary grizzly or something but he makes and sells cute stuff and the brand is quite famous and popular. the female lead is a big fan of the brand and ends up discovering its him who makes the stuff. i really want to read this again so any sggestions as to what this manga might be called would be super helpful!