Undying Life - Chapter 1009 - : The Return of the Supreme Lord

Yan Hua loses her memory in an accident. Later, she is pregnant with someone else’s child. After kicked out of her husband’s house, Yan Hua is about to perform the story of an inspiring mother raising her child. Unexpectedly, the baby is regarded as a real treasure and, thus a bunch of people are rushing to acknowledge as the baby’s relatives. Therefore, Yan Hua is drawn into the whirlpool of disputes inside a noble family with ambitious aunt and unproved mysterious brother-in-law… Who is the father of her child? Who is she? Facing all these issues, what is her choice?

- Description from Novelupdates

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

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.