Unbound - Chapter Eight Hundred And Seventy Nine: 879

Blayn transmigrates into the world of Akame ga Kill and obtains the Mangekyō Sharingan—Kamui! Not just one, but both Kamui!

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

Lucien was chosen by the God of Gamblers to participate in the Heaven’s Gate Project. Their goal was to help save a dying world from destruction, and ensure that it wouldn’t be destroyed a second time.

Unfortunately, things didn’t go according to the God's plan. Lucien’s soul was heavily injured during the soul transfer and on the verge of collapse. Having no other alternative, the God of Gamblers was forced to take yet another gamble to preserve his chosen candidate’s soul and help him find a new vessel.

As if arranged by Fate itself, Lucien’s soul wandered into the world of Solais until it merged with the dead body of a newborn baby that was left to float down a river. With his new identity as Lux, the boy realized that even with the blessings given to him by the Gods, saving a world was not an easy matter.

In a world of Swords and Magic, where adventures run wild and free… the Legendary Saga of an abandoned Prince is about to begin!