My host in fast time travel is a full-level boss

[Full-level straight female protagonist × tender and crying male protagonist]
Dark elements invade the novel in the modern world, and the male protagonist is blackened for various reasons. Our slogan is to protect the male protagonist to grow up well and become a flower of the motherland with roots!
Wait - why is the male protagonist so obedient, what about blackening as promised?

……
World N: Monster Hunting Diary
The demon king is so cute, what should I do?
……
PS: The above worlds are not necessarily written in order

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