Bog Standard Isekai - Chapter 39Book 3.

Violet skies, a world undergoing massive changes, a deficient moon, interlinking voids…
When the world experienced a cataclysmic event,the majority of living things ceased to exist. Although humanity survived by hiding in the last safe zones, humans had to face mutated dire beasts and colossal source beasts that could break through the space barrier and enter the earth at any second.
Luo Yunyang, a young man who grew up in those calamitous times, obtained an attribute regulator and set out to walk the path of supremacy!

- Description from novelupdates

Xue Chong is one of the top experts on the Slaughter Board rankings and possesses sharp gaming skills. Feared by all, he is seen as an inviolable and unapproachable person.

However, no one knew that Xue Chong had accepted a cute and adorable female disciple when he first started playing online games. Yet, just as his feelings were gradually growing, Xue Chong discovered that his disciple was unexpectedly a man!

Henceforth, Xue Chong was assailed by a psychological shadow.

Many years later, they met again. The meng disciple from back then had transformed, becoming a top-ranked player on the PK leaderboard and the #1 most attractive and wealthy great God.

Wang Chun: Master, master ~\(≧▽≦)/~ This disciple missed you ~

Xue Chong: Get lost.

- Description from Novelupdates

Sato Yu is a 12-year-old boy. He is a deprived person. His life is depriving. His step father has a large amount of debt.

Travel to the world of One Piece?

They come, the security;

Became Don Quixote Rossindi?

Forget it, it can’t be reopened;

But after realizing that he had eaten the fruit of silence, the little boy became restless.

Fruit of Silence, this is one of the devil fruits that can compete for the title of “the most useless” in the world of One Piece; it is only a little better than Chopper’s “Everyone’s Fruit · Common People’s Form”!

“Dover, you said you are a devil fruit wholesaler, why do your family eat all kinds of weird ones?”

Facing the bewildered little Dover, Rossindi patted his forehead.

“Forget it, let’s practice domineering hard.”

- Description from novelbuddy