(Authors Note: If it is not clear enough, revealing about the Group Chat is ok. I mean you could say that they have a group chat, yes and people will normally think they are just from somewhere around the world. Unless dudes a transmigrator no one would really think about the group chat straight being multiversal.)
Multiversal Anime Group Chat: A Journey Across Realms
Anime & Comics · Kuroki_Shishiro
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