From the Start, I Have a Sekiro Character Card, and I’m Wandering the Myriad Worlds

The protagonist, Zhao Tiandi, is strolling down the road when he runs into the Hundred-Ton King. He gives it everything he's got, runs 350 meters, and still can't beat the 233-ton behemoth. Then he's sent off to reincarnate in another world~

(The text below is the old blurb. All you need to know is that the protagonist is invincible.)

The story begins after the protagonist transmigrates. The main world won't be covered, so all you need to know is that he's an orphan. There are no emotional storylines involving the main world, since the author isn't good at writing those.

Zhao Tiandi is sent straight into the Main God Space by the Hundred-Ton King, where a certain indescribable great being takes a liking to him and gifts him an extremely awesome (definitely true!) System. And so begins his journey through the Myriad Worlds~

One more thing: please don't run off just because the beginning seems confusing. I had a hard time sorting it out too, but it gets less confusing later. I'm a new author, so please be kind!