1. General Information | Aspect | Details | | :--- | :--- | | Episode Title | Cruelty (残酷, Zankoku ) | | Series | Demon Slayer: Kimetsu no Yaiba (鬼滅の刃) | | Season | 1 | | Episode Number | 1 | | Original Air Date | April 6, 2019 (Japan) | | Studio | Ufotable | | Director | Haruo Sotozaki | | Episode Runtime | ~23 minutes | 2. Plot Summary The episode opens in the snowy mountains of Taisho-era Japan. Tanjirō Kamado , a kind-hearted charcoal seller, leaves his family to sell charcoal in the nearby village. He stays overnight at a villager’s house after being warned about a demon that roams the mountain at night.

When Tanjirō returns home the next morning, he discovers a nightmare: his entire family has been brutally slaughtered by a demon. The only survivor is his youngest sister, , but she has been transformed into a demon herself.

⭐ 9.5/10 (Essential viewing for any anime fan.)

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