"Late Bloomer" is the story of Sumida-san, a severely handicapped man, and his downward spiral into hell. When we're first introduced to him we find that despite his physical limitations--and contrary to cultural misconceptions about the handicap--he has all of the desires and personality traits of a physically normal man. Specifically: he loves to party, eat good food, and "rock out" to his caregiver Take's hardcore band. However, Sumida-san's life begins falling apart when he develops a crush on his new occasional caregiver, Nobuko. Needless to say, the feelings are not reciprocated and when Nobuko starts spending her free time with Take, Sumida-san is driven mad with desire and frustration and things take a turn for the worse.