Rakuin no Monshou - Volume 2, Chapter 3: Her Royal Highness’ Gladiator

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

When other people experience a body transformation, it is inevitably either male to female or female to male.

Me? I wake up to find myself transformed into two different bodies.

Both a male body and a female body, one conscience operating two bodies, all sorts of embarrassing moments.

Walking together normally makes other people think that I am sweethearts with my other-self, such sadness.

Also, the entire business of a hero rescuing the beautiful maiden, I call Bull.

I get slashed by a sword and my female body gets abducted, and he wants me to thank him?!?! Can it be less of a tragedy?

- Description from Novelupdates

"Locke transmigrated into an era where everyone had Battle Beasts. Daemons were rampant and humans were forced to build walls around their dwellings while depending on Beastmasters to keep those monsters at bay.

Three years ago, President Qiao did not hesitate to sign the papers when Xia Ning placed the divorce papers in front of him.

Three years later, she is an up-and-coming star in show biz; watched by the public but knee-deep in scandals.

He is a resolute emperor in the business world; powerful and omnipotent.

Their paths were supposed to be separate and independent, but—

Standing at her door, the legendary ruthless and unyielding diamond bachelor asks for a remarriage. A cute bun appears from behind and gazes at Xia Ning with his big, starry eyes. “Mummy, Daddy will cook, I will warm the bed, please take us in.”

- Description from Novelupdates