If you saw “Circle Eden V6” on a fan wiki, Pinterest, or scanlation site, it’s almost certainly a or an original story borrowing Bleach characters.
Members can create custom Zanpakuto using a point-buy system regulated by V6’s "Central 46" moderators. Every Shikai and Bankai must follow a logical rule set (e.g., "No reality warping," "No absolute immunity"). Bleach Circle Eden V6