My Little Monster, also known as Tonari no Kaibutsu-kun, is a charming age gap romance manga written and illustrated by Robico. The story revolves around Shizuku Mizutani, a studious and socially isolated high school girl, and Haru Yoshida, a troublemaker who is younger than her. When Haru develops feelings for Shizuku, their lives take an unexpected turn. The manga beautifully portrays their journey of self-discovery, friendship, and love, while addressing the challenges posed by the age gap and their contrasting personalities. My Little Monster is known for its delightful characters, witty dialogue, and heartwarming moments.