Douluo Dalu 2: The True God King - Chapter 1: [DD2]:

The 7-year-old little crybaby met 11-year-old big brother who ran away from home.
[This man became the protector of redemption in his life]

The 16-year-old little dragon fell in love with a 20-year-old big brother.
[It’s a pity that the big brother didn’t recognize him as the little crybaby]

The 23-year-old single father and 27-year-old chief executive meets again.
[This time the little crybaby and his big brother are finally together]

Fortunately we met through hundreds of millions of people, Thank God, for letting us break through many obstacles and get back together again, falling in love with you and being with you again is the greatest fortune in my life.

- Description from Novelupdates

Their sins got the whip of god's worst.On that fateful day, god left the world in ruins.However, in his supposed mercy, he left them with a means to survive.To protect themselves against the fiendish demons and monsters that came upon them.This gift, they called: Talents!In this god-abandoned world, Kieran Marcoth, on the day he was to receive his talent—a gift from Orion, the left god—he awakened a 'hidden' SSS-ranked talent.A talent that could only be activated once the condition was met.Instantly, Kieran turned into a subject of mockery, spite, and insults, and somehow, just somehow… he found himself riddled with injuries and on the brink of death.However, it seemed Orion was yet to forget his son.[Ding! Conditions have been met][Host has been successfully selected as a God candidate][Defeat the other candidates! Become the next God of this ruined world]Seeing the notification, Kieran couldn’t care less.Only one thought was registered in his mind:‘I’m going to fucking kill those bastards!’His journey began… Will the once-kind helper become a tyrant god?

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