Jongdae decides to take weight training class as his gym class of choice during his senior year of high school.  He expects to gain a toned and (lightly) muscled body as well as start a healthy lifestyle in preparation for impending college life.  What he doesn’t expect is a deceptively small but properly ripped (is that an 8-pack?!) big cheeked student (not to mention his crush!) to make him feel all sorts of emotions deep within himsel