If You Don't Fall In Love, You'll Die - Chapter 30

Shi Yuhan is the most heartless and evil human Song Qinghuan has ever met. He's arrogant, sharp-tongued, ruthless, and heartless towards her. Yet, he asks (read threaten) her to marry him and she has no choice but to agree. She needs to get into the Era Group to investigate her elder brother's whereabouts.Will her sacrifice be worth it? Will she be able to find the truth of her elder brother's disappearance? Will Shi Yuhan continue tormenting her? What's his motive?

Blue Learley, a seventeen-year-old girl, lived in a small town with her parents and two brothers. Everything was going as usual until that fateful night when her life changed forever. Demetrius Easton, the merciless werewolf king, got his eyes on her and wanted her as his bride. When her own parents sold her to him, she had no way of escaping him and no one to turn to for help.***“I don’t want to stay away for too long. Sometimes I fear the bird might fly away.”“The bird doesn’t have a home. The outside world is dangerous for it. And besides, the bird has already found its freedom inside,” I said. “The bird won’t fly away.”‘So you don’t have to cut its wings since it did not grow them in the first place. It’s okay. The bird likes the cage anyway.’

500 years ago, Chen Xi was devoured by a crack in the void and was transported into a cultivation world.

500 years later, he returned back to Earth after enduring through several hardships and discovered that only 5 years had gone by.

…

In the courtyard, beauty at the side, a candle flame wavering.

A gush of clear wind, half a full moon, the peach tree remains unchanging.

…

Wait, whose kid is this?! Why is she calling me papa? Gazing at the little girl in front of him with skin as pale as jade, Chen Xi froze.

…

　
Returning home from cultivation, starting as a stay-at-home dad.

In this life, not fighting to be a king nor claiming to be a tyrant, only praying to peacefully be a wife-pampering mad devil and a child-protecting daddy!

- Description from Novelupdates

This novel is a blend of the anime Oregairu, focusing on Hachiman Hikigaya as our main character, and Classroom of the Elite, intertwined with a sweet romance. Give it a read and decide whether to continue based on your experience!