Hueco Mundo, Project Mugetsu Wiki

Hueco Mundo is the designated realm in the game for players who have chosen to become Hollows. It is a place where they can complete quests to earn experience points, level up their abilities and defeat Bosses. Non-Hollow players can gain access to Hueco Mundo by partnering with a Hollow possessing the Garganta skill, which can be purchased from the shop only by high-level Hollows (Adjuchas, Vasto Lorde and Arrancars) for teleportation.

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Create and describe a super attack spell for Orihime. She deserves it at least for once… : r/bleach

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In the bleach, how big is the Soul Society, Heuco Mundo, World of the Living, and Hell? - Quora