Video information
Natsumi Futagawa (voiced by Yui Horie) is a true heiress who has been pampered since childhood, lacking the ability to interact with peers and gradually developing a personality with no self-confidence and a negative outlook on life. Taking her college entrance examination as an opportunity, she finally breaks free from her parents' control and moves into Waizou, a building filled with various tenants. On the day of her move, Natsumi narrowly escapes a car accident, and a handsome man (voiced by Takahiro Sakurai) appears just in time, not only saving her life but also giving her a stern lecture. Natsumi falls for him at first sight, but as she struggles with her feelings, she discovers that the handsome man actually lives under the same roof as her. In a moment of impulsiveness, she confesses her feelings, only to find out that this handsome man with a height of 173 cm and a charming appearance is actually a primary school student! The "Monster" love story between a high school heiress and an extraordinary elementary school student, "5th Grade Class Gakuhara," officially begins. This drama is adapted from the eponymous manga work by the Japanese manga artist Maruaki Hiji.