Atsuhiro "Akkun" Kagari is crazily in love with his girlfriend Non "Nontan" Katagiri. However, instead of showing his feelings, he hides them under a tsundere mask and prefers to store her photos and voice in his phone.
Akkun's best friend Masago Matsuo asks Nontan if she is really okay with a boyfriend who only spouts cruel words at her, but Nontan reveals that she knows Akkun doesn't mean what he says and believes he loves her. The next day, Akkun decides to walk home with her and gathers up his courage to hug her, although he ignores her out of embarrassment for three days after. A similar situation occurs after he kisses her, only he skips school for five days instead.
