Tomo Aizawa and Junichirou "Jun" Kubota are the closest of friends - they engage in roughhousing and sparring, and have each other's backs in any circumstance. However, Tomo has a tiny snag: she is deeply in love with Jun!
Since she was young, Tomo has been a tomboy and has blended in as one of the guys. Jun, with his dense and muscle-headed nature, does not pick up on her hints, not even when she explicitly confesses her feelings. Adding to her disappointment, Jun is unaware of her feminine identity. Will Tomo ever be able to catch Jun's attention and escape the dreaded friend zone?