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Box of Happiness (幸 (しあわ) せの箱 (はこ) Shiawase no hako?) is the one hundred and forty-fifth chapter of Koyoharu Gotōge's Kimetsu no Yaiba.

Summary

The chapter beings with Kokushibo standing over Kaigaku offering the him the opportunity to become a demon and get stronger.

Characters in Order of Appearance

Events