Nasa, at the request of his former junior high school teacher, Ms. Yanagi, finds hisself entrusted with teaching a programming class at a high school. But here's the catch—it's an all-girls' school. Surrounded by the limitless energy of teenage girls, Nasa tries to maintain his composure, but deep down, he can't help feeling nervous. A capricious boyfriend, secret admiration for someone, and a multitude of romantic dilemmas that can't be solved by programming, Nasa wonders if he can crack the equation of love!

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