Reborn In The Apocalypse: It Had Always Been You - Chapter 4

In a romance novel called “The Secret Lovers of the Academy” the male lead would often torment his fiancée–but wait, why did she cross into this world to become his fiancée, the villainess, instead of the heroine?

I thought I would live a better life in my second lifetime. Unbelievably, I’ve reincarnated into a slime that rolls around on the ground. Anyway, this is my precious new life, so I must work hard.

A novel revolving around being transported to another world with an op system. The mc spends his day chasing skirts and doing missions to level up. A standard journey to the top with lots of girls from various animes and games with a twist of that gaming feel (hunting mobs, doing missions).

- Description from novelupdates

All Ewan Giacometti wants from his wife is a son. But after three years of unhappiness and disillusionment, Athena Moore is ready to leave her ice cold husband. When she finally asks for a divorce, Ewan’s cunny ‘best friend’ frames her, driving her out of the city. Now, Ewan is left to confront his true feelings about his wife, whom he had married under mysterious circumstances, especially when she returns from exile a changed woman.