Anime Crossover: Starting with Watching the Holy Grail War!

[This is a beginner's work, so the writing isn't great and there may be some inappropriate parts. Please be gentle.] [Unrelated to reality.] [If you don't like it, please scroll away.] [This story contains many secondary settings.] [Fictional world.] [Gender-swap exists.]

Ye Yun transmigrated to a crossover anime world, filled with familiar anime characters like Hachiman Hikigaya, JoJo's Bizarre Adventure, and Miyuki Shirogane. Over a decade passed in the blink of an eye. Using his memories from his previous life, he achieved financial freedom and simply wanted to live a peaceful life. However, a screen appeared around the world, turning some anime worlds into virtual copies and playing them out, with the art style gradually becoming distorted…

Ye Yun: Why do birds fly? Because they must fly into the sky. When the final meteor falls, only the free birds escape their cages.

Hachiman: What do you take your life for?! If no one will stop you, then I will!

Amiya: I will protect everyone on Rhodes Island. Transform!

Ye Yun: The gods will fall, and I will rewrite your history!

Miyuki Shirogane: Just you wait and see! This is the power of humanity!

Ayanokoji: I have no dreams, but I can protect other people's dreams!

Ye Yun: I will bestow authority and grace; only by accepting my grace will you be qualified to live!

Ye Yun: ? ? ?

...