Due to her poor behavior in high school, Chiemi Yusa is at risk of being expelled with two suspensions for fighting in her first year. However, her teacher suggests an unconventional solution to solve the problem. The plan involves persuading her classmate Akifumi "Deranged Devil" Hirata, the most notorious fighter in school, to change his ways, and her past actions will be forgiven. Although unsure, Chiemi agrees to the plan as she is keen on clearing her name. She starts with an attack, but to her surprise, Akifumi has a different plan in mind for her. Junai Tokkou Taichou! tells the fascinating story of two troublesome teens who find themselves in an unpredictable situation, and as they solve their predicament, they also fall in love.