Akuyaku Reijou ni Nanka Narimasen. Watashi wa『Futsuu』no Koushaku Reijou desu! - Chapter 213.2: Saintess’ inheritance and weapon.

For three years, Finn Taylor is utterly humiliated. He has endured everything from physical beatings to verbal abuse. For three long years, he has gone by only one identity—the useless matrilocal son-in-law of the Larson family. But this life as he knows it is about to be turned upside-down as he reclaims his position as the head of Peregrine Hall.

I spent my life playing a game.
I hit the wall, stuck in second place for the rest of my life.

Out of the blue, I received a message and was possessed by the game.
As the worthless son of an Underworld Boss!

“Yes, bloodline is also a power, as long as you can use it. My ability is ‘Famiglia’.”

The game addict never disappears. Overwhelming violence, endless wealth, connections in the other world. I, I’ll use anything to stay alive!

Being dragged forcefully, the young man found himself in a world where cultivation and magic exists. In this vast multi-worlds, the blood of the innocent and the blood of the guilt are spilled like it's nothing.

“I finally found you,” The words sent a jolt to his soul as an unknown yet familiar blurred memory played in his mind. Embraced by the unknown woman, they shared a kiss to his surprise.

Wearing a ring that held half of the power of his past life, the young man ventured to find his women and retrieve his lost memories.

Oh yeah, he was transferred naked.

A river song, triggered a legend of the rivers and lakes.
Tian Zun’s life motto: “My sword is the truth.”
Shen Lang’s life motto: “To serve people with morality, those who are dissatisfied are dead.”

- Description from uukanshu (translated)