Isekai Maou to Shoukan Shoujo Dorei Majutsu - Volume 3 Chapter 2.3

First World : CampioneCurrent - Second World: High School DxDThird World: ???Reincarnated into the world of Campione! Haru Kasugano, our hero slays gods and ascends as the mightiest Godslayer. He battles powerful God-Kings and Campiones, claiming victory after victory. Whatever it is. [Wealth, Power, Beauty] he has it All. Watch him grow stronger as he travels into new realms like High School DxD and the Fateverse, leaving a trail of defeated gods and captivated hearts in his wake.

“With each stroke, a river and a sea are painted, and with a brush, mountains and rivers are determined.Some people admire a painting depicting a fierce ox toppling a mountain and comprehend the profound martial art technique called 'Crushing Mountain Force.' With boundless strength, one can move mountains barehanded!Others gaze upon a sword shining with a cold moonlight in the painting, thus realizing the 'Cold Moon Divine Sword Art.' With this sword, they can slay otherworldly beings and gain fame that resounds in all directions.Li Changqing, a top woodcarver, transmigrates into the world of Cangyuan. He discovers that his woodcarvings are more enlightening than his paintings. From being a destitute and worthless painter, he rises to the pinnacle of the Cangyuan world.In his previous life, he indulged in sculpture and ended up raising a wayward child. However, in this world of Cangyuan, he has a well-behaved and filial son who lacks talent but dreams of becoming an immortal through cultivation.If my son wants to become an immortal, then as his father, I will help him achieve it!However, Li Hengsheng, the son, begins to suspect that his useless daydreaming and money-begging father may have been possessed by someone else!”

Ai Qian, a street-crazy author who wakes up every day because of her own poverty, is bound by the system!
The system is obedient: Host, you are the daughter of a rich family, you are a billionaire female president, you are a superstar… Are you happy?
Ai Qian: Hehe, I might be happier if there is no hero who can kill me at any time.

- Description from novelbuddy

Leiyin accidentally crossed into the One Piece World, and accidentally obtained the Naruto System.