Giyuu Tomioka is a character from the hit anime, Demon Slayer: Kimetsu No Yaiba. Known as the Water Pillar, he is one of the nine Hashiras of the Demon Slayer Corps. In the first episode, Giyuu encounters Tanjiro trying to save Nezuko. He delivers the harsh truth: she is a demon and she must be killed. When Tanjiro fights back, he is impressed with his skill. Giyuu is rather stoic and unpleasant, as reinforced by Shinobu's teasing that nobody likes him. Although unlike the other Hashiras, he shows mercy towards Tanjiro and argues to let Nezuko live.

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