Eita, a mechanical otaku, discovers that Makina, the school idol he's secretly liked, is actually a robot built for sexual purposes. Now, he must navigate her bold advances while helping her keep her identity hidden in this chaotic romantic comedy.
Makina, armed with inaccurate knowledge about sex, tries to seduce Eita. However, Eita, inexperienced with girls, is too busy awkwardly trying to be considerate. Sensing a lack of progress, Makina, under the pretense of taking care of him, barges into the bathroom while Eita is taking a shower.
