Kimetsu Gakuen! Volume 3

Whereabouts of the Butterfly Hairpiece (りのゆくえ) is the third volume of the Kimetsu Gakuen! spin-off series by Natsuki Hokami.

Chapters

 * 11. Three Snapshots of Kimetsu Academy's Everyday Life (キメツのショート3て)
 * 12. Halloween Pumpkin Battle (ハロウィンパンプキン バトル!)
 * 13. Let's Tidy Up! Clean Up! The Teacher's Room! (そう！！！！)
 * 14. Komainu Running Wild
 * 15. Whereabouts of the Butterfly Hairpiece (りのゆくえ)