How I Accidentally Married a Billionaire - Chapter 90 -

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.

Alex, a socially awkward guy with a mundane life, dies in the most ridiculous way imaginable — slipping on a banana peel while whacking off to an adult film. His embarrassing demise leads to an even stranger fate: he wakes up reincarnated as Jonny Sins, a rising star in a parallel universe where adult film actors are legendary heroes wielding unique powers of charm, seduction, and stamina.But life as a hero-pornstar is more complicated than it looks. Jonny is guided by Lustina, a seductive, snarky AI system offering him power-ups and quests — all with a price. As he navigates the absurdity of this erotic world, Alex discovers deeper mysteries about the System bound to him. Why was he chosen? What is Lustina’s true purpose? And why does the fate of the erotic multiverse seem to rest on his… performance?Armed with special techniques, limitless stamina, and newfound confidence, Alex must embrace his new identity as the Legendary Hero of Many Professions — doctor, soldier, astronaut, teacher… and aggressive step-daddy — to rise through the ranks and confront the ultimate threat to pleasure and freedom.It’s going to be a wild ride.–––[Jonny I've got an audition for you, are you interested?]Jonny: what's that?[Do you wanna act in a porn fraction? The role is an amateur twick is available for now]Jonny: Do you really want me to act as an amateur twick?.[If you aren't ok playing the role of an amateur twick, there is another role available. The role of an aggressive step daddy]Jonny: I choose the step daddy! I always loved to be a stepdad. I was born to play this role.

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

A high-ranking officer in the Marines and a master of both Western and Chinese medicine, Feng Yu Heng is transmigrated with a duang sound to the Da Shun Dynasty.