Oh my god,
I've traveled to the future, it's awesome!
Do you think I want to be a Mary Sue heroine? NoNoNoNo, I don't want to.
If you don't want to, what about you?
That's right, killing the male protagonist, becoming the only protagonist, embracing everyone, and reaching the pinnacle of life is my only goal.
Small theater:
Male protagonist: "Become my princess, Lingshi."
Lingshi: "No, I already have the girl I like, I can't accept you anymore*^_^*"
Male protagonist: "I..."