A user known as @xroserantsx has uploaded a short video on YouTube challenging fans of the 'Mizuboy' theory, a popular fan interpretation within the Project Sekai community. The video, which has garnered 803 views in 10 hours, invites discussion around the character Mizuki Akiyama, sparking debate among fans. The creator uses hashtags including #xroserantsx, #fypシ゚viral, #projectsekai, #mizukiakiyama, and #mizuki.
Project Sekai Fan Rallies 'Mizuboy' Believers in New Short
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May 3, 2026 · 3:13 AM