The Unfaithful Husband Doesn't Want to Turn the Young Lady into a Yandere

When his fiancée betrayed him for another woman, Gray finally understood that even staining his hands with sin for her and becoming a tyrant in the eyes of the world could not overcome that absolute barrier.

And his trust in her became the spark that would bring the world to ruin.

Back in the past, Gray makes up his mind. She never took things seriously, so he'll simply let go. He will save the world. Women are a nuisance.

Except...

The earl's daughter is warm and forward, and "accidentally" runs into him on his commute every day.

The neighboring kingdom's princess, sweet-voiced and soft-bodied, is a master of flirtation and has a hundred reasons to linger in his office.

The shrewd and capable director only lets herself become a domestic disaster in front of him.

The young lady thief who prowls the night has never failed, yet time and again the sickly, frail Gray pins her to the ground.

As for his childhood friend, fiancée, and saint who saved the kingdom, Gray can only say: let's part on good terms.

But she pins him to a chair, her long legs clamping around his knees, and her expression is clearly not quite right.

"Hey, Gray, I'm your fiancée, aren't I?"

"...You don't have to be... I'm here to save the world. What are you doing?!"

(Later-on G-rated male protagonist story, no harems, no toxic content, mistaken-identity tropes, no actual NTR.)