Mom is a slut, my younger sibling is a bully, and Dad is a thug - Chapter 2 - : Mom and Dad in the Studio Apartment (18+)

[You have entered the dungeon at Gwachun Station’s 1st Exit.] When former high school student Kang Woojin finds himself returned back to Earth after being forcibly summoned to a foreign planet for 20 years, he soon finds that Earth is not the same, normal place as he once remembered it to be.

Gu Nianshen had thought all along that he was raped by an older lady five years ago when he got really drunk at a nightclub. When he met a child who resembled him and Lin Yiqian, he carried the child in his arms.

“Where is your Mommy?” He asked. Calmly, the child pointed a finger at the screen of his phone.

“There. She’s performing at a concert.” Coincidentally, the screen was displaying how a wealthy fan gifted the female singer on stage with 999 roses.

Gu Nianshen’s facial expression turned spiteful as he gave his secretary an order. “Give Lin Yiqian a call. Tell her that her son has been kidnapped. She will have to turn herself in to get him in return.”

“Bad guy…” Before the child could finish uttering his sentence, his biological father had placed a hand over his mouth. “You are being kidnapped!” Gu Nianshen fumed.

- Description from Novelupdates

Char lived alone in the closed beta test of “Fantasy World” for thousands of years. He had already experienced 177 data wipes. In this span of time, he had already successfully charmed all of the NPC beauties, challenged all of the bosses single-handedly, gathered all of the divine weapons and used hundreds of methods to complete the online game as though it was a replayable console game. Just as he was losing the ability to differentiate whether he was a player or an NPC, the public beta started for “Fantasy World”. As such, a player who was even more terrifying than a boss was born.

“You’re not taking me to bed. Ever.”