Watching the Worlds: I Was Livestreamed While Gaming

[Games + reality + fan works + novels + anime + System + watch parties]

Lin Hai, a gaming streamer, suddenly discovers one day that a new game has appeared on his phone.

Curious, he opens it and starts playing, never realizing that the game and the worlds of countless anime crossovers are watching his livestream...

P.S. There are a few sad moments, but overall, the story is bright and uplifting.