Taking over your body, hurting the ones you love, and denying your previous life. So many time travellers/people who think they are reborn have taken over the original owner of the body. Who has provoked whom? She/they are not convinced!
Naturally, you should make your own decisions about your own life.
World 1: The ruthless emperor x the time traveler who saves the affectionate queen
Once he sat on the throne, he had to be a king first, not someone's husband or someone's father.
World 2: The dandy young master x the time traveler with an elite character
What's wrong with me being ignorant and ignorant? I'm eating your rice! I don't know how happy my life is, who wants you to counterattack me?
World 3: Introverted official son x resentful reborn person
It's true that you are pitiful, but you took possession of my body and dragged my whole family to avenge you, which is meaningless.
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Purpose: Make your own decisions about your own life