Chuukou Ikkan!! Kimetsu Gakuen Monogatari: Valentine-hen  

Junior High and High School!! Kimetsu Academy Story: Valentine Edition, Kimetsu Gakuen: Valentine-hen, キメツ学園 バレンタイン編, Tales of a Demon Slayer Academy: Valentine Specials, キメツ学園物語 バレンタイン編, Kimetsu Gakuen Monogatari: Valentine-hen, 初高中同校！！鬼灭学园物语

Zenitsu agatsuma is focused on becoming admired by receiving chocolates this valentine's day. to achieve his goal, he enlists tanjirou kamado's help and they seek guidance from popular teachers at kimetsu academy, including kyoujurou rengoku (history), giyuu tomioka (pe) and tengen uzui (art). the friends hope to learn the secrets behind their popularity in order to replicate it for zenitsu. however, only time will reveal whether following this advice leads to success for zenitsu.

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