Li Tian awoke to find himself in a new world. Here, ancient martial arts, powerful mechs, mysterious superpowers, and mutated gene warriors… In this interstellar age of exploration, everything seemed prosperous and full of hope, but beneath this calm surface, turbulent undercurrents surged. Secret cults, star beasts, ancient gods, shadows… they had long since infiltrated every corner of the world, hiding beneath the surface, growing stronger and more powerful. …Fortunately, Li Tian possessed a class panel; with diligent practice, he would reap the rewards. From [Transmigrator] to [Lord of the Heavens] traversing the realms, from [Martial Artist] to [God of Martial Arts] who could shatter stars with his fists, from [Psychic] to [King of the Four Forces] who controlled the rules… In the zombie world, he was an unrelated figure who obtained everything. In the horror world, he was a holy being who purified everything. In the Warhammer world…

"Ah, Noah, I remember your little trick!" "Seiga, the weak hope for miracles, while the strong control their own destiny." "You should understand that even the most powerful attack is meaningless if it misses, Reijudo!" "King of Ultra, the false king hides beneath a false crown, while the true king does as he pleases." Chen En, having traveled from the League of Legends universe to the Ultra World for the second time, has just become the Tyrant of Light. Before he can conquer the entire dimension, he is sealed away by the mysterious Four Ultras. He thought he would sleep forever. But then, his soul entered a dimension, saw other versions of himself, and discovered that they could share abilities. Suddenly, everything became interesting. He awakened again in the Ultra World and became the final boss! In the Cage World...

[Multiple female leads] [Invincible protagonist] [Pure and satisfying] [Non-Japanese male lead]

Lu Ming, from the world of high martial arts, obtains a system that allows him to travel to anime worlds. He can obtain different rewards by conquering these worlds.

However, these anime seem to be somewhat niche...

For example, "About My Brother and I Living Together in a Small Town."

Or, "My Devil Club Story is Really Problematic"

Or perhaps, "The Story of the Tsundere Student Council President and His Naturally Dark Twin Sisters"