There are many routines. There were festivals when I was a child. Ye's memory is fuzzy, but he remembers some, and Yu has not forgotten it.
Ye Shabaitian... Bah! Pretended, out-and-out white and black
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Yu Yixi: This copy is a bit scary, I can protect you
Ye Li: No one has ever said that they want to protect me. You are the first one.
Then Yu Yixi witnessed how crazy Ye Liqie looked when he was fighting monsters and having fun.
Yu Yixi: ... How about you protect me instead?
Os: Bah! I'm the attacker!
Concept: unlimited flow