MTL - Plane Development Plan - Chapter 32 Infinite Mountain was destroyed

When she was rejected by her fiance, everyone laughed at her. Little did they know, she actually loved her fiance's uncle, a trillionaire tycoon, for a long time.Later, she had four doting brothers, numerous secret identities, and a husband who was madly doting on her.Fu Shiyan smirked, pulling her into his embrace, “Dear, when shall we have our third baby?”

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?

Born with the fate of a slaughterer, but all he wanted to do was help.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates