Junior High and High School!! Kimetsu Academy Story: Valentine Edition

These specials were originally shown at the Kimetsu no Utage live event which was held on October 20th 2019 in Tokyo with the voice actors live-dubbing their dialogue. Later properly dubbed and released on the Kimetsu no Yaiba DVD & Blu-ray. Note: Related to the post-credit shorts after episodes 14, 17 on the TV broadcast of Kimetsu no Yaiba.

Valentine's Day is approaching; Hosaka is still trying to express his love to Haruka by cooking, cross-dressing Mako-chan fears to be found out, Kana-"sensei" teaches the other girls how to "win" Valentine's Day, and Fujioka is desperately trying to receive Kana's chocolate.

OVA that came with the PlayStation 2 game "School Days L×H" Makoto, Sekai, Kotonoha, and many other classmates all go to a hot springs hotel to relax, where they discuss what their plans are for the upcoming Valentine's Day. When the day actually comes, half a dozen girls fight over who gets to give chocolate to Makoto.

A series of Valentine's Day-themed Osomatsu-san shorts published as a dTV exclusive.