Kakushite! Makina San!!

Eita Akutsu is a gloomy, friendless, and virgin mechanical otaku. Even someone like him has a girl he admires—Makina Agatsuma, the popular and glamorous “gyaru.” One night, as Eita returns to his lonely apartment, he finds none other than Makina crouching in front of his doorway...

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.