45 Anime for Your Next Marathon

Saitama trained until he became strong enough to defeat any enemy with one punch, but the lack of challenge has left him bored and unrecognized. After accepting the cyborg Genos as his disciple, he registers with the Hero Association, where his low ranking contrasts with his true power; as monsters and aliens threaten the cities, he searches for a battle that can make fighting exciting again.

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Yuji Itadori swallows one of Ryomen Sukuna's cursed fingers to save his friends and ends up sharing a body with the most feared demon in history. The sorcerers postpone his execution until he can gather and consume every finger, so Yuji joins the Tokyo school with Megumi and Nobara to exorcise curses while struggling to keep Sukuna under control.

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Sung Jinwoo is known as humanity's weakest hunter until a raid inside a hidden double dungeon ends in a massacre. Surviving grants him access to a mysterious System only he can see, allowing him to level up when every other hunter's strength is fixed; while concealing his rapid growth, he investigates the source of that power and the threat behind the dungeons.

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Tanjiro Kamado returns home to find his family slaughtered by a demon, with his sister Nezuko the only survivor and transformed into one herself. When she shows that some humanity remains, Tanjiro joins the Demon Slayer Corps to seek a cure and pursue Muzan Kibutsuji, the killer responsible, while learning breathing techniques to fight increasingly powerful demons.

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