Tsuki ga Michibiku Isekai Douchuu - Chapter 451: It came unexpectedly indifferently

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

“Is this man not going to divorce me? Why does he still ask me to warm the bed every night?”

[The return of the Great Holy Spirit, blood boiling! 】 The father was killed, the family wealth was taken, all the hands and feet were interrupted, and the revenge flame was ignited, and the Qitian Dasheng inheritance was obtained. Since then, the rise of the sky, God blocked the killing, the Buddha blocked the Buddha! Qin Feng wore a gold armor and held a hand of the sea god: “I want this world for thirty-six days, and I will return to the big holy flag!”

- Description from Fpzw (Translated)

A story in which a woman, after learning that the world would end in ten days, sets out to finish one last thing: murder her ex-girlfriend.

However, she ends up befriending, and spending the world’s final days with, the little sister of her ex-girlfriend instead.