Zenitsu Agatsuma is determined to be the subject of adoration by receiving chocolates on Valentine’s Day—and this year, he is taking no chances. Enlisting the help of his friend Tanjirou Kamado, the two are prepared to learn from some of Kimetsu Academy's most popular figures. Together, they ask Kyoujurou Rengoku, the history teacher; Giyuu Tomioka, the PE teacher; and Tengen Uzui, the art teacher, about the secrets to their popularity. However, only time will tell if following their advice will bring the same success for Zenitsu. [Written by MAL Rewrite]

Kimetsu Gakuen: Valentine-hen is a series of Valentine's Day specials for Kimetsu no Yaiba. The first three episodes were released to Aniplex's official YouTube channel, with the fourth being streamed during the Kimetsu Matsuri Online: Anime 2nd Anniversary Festival.