"I will prove that you exist in this world in my name." The man told him gently, "You will never be alone again."
[Existence is reasonable]
"You should understand this truth." So don't be confused, please be happy, there will always be someone who can be with you.
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Danmei Xiang, probably NP, the protagonist attacks
The author is a severe patient with procrastination and has not given up treatment yet [?