What more do you need from a story about the Myriad Worlds?
You can skip around between arcs without affecting anything. The protagonist is basically invincible from Volume Two onward.
It jumps into all kinds of worlds: American comics, anime, movies, TV series, you name it.
Just looking for fun and making up for regrets, such as leading Shohoku to a national championship, saving Gwen Stacy, Tony Stark, Wolverine, Mei Changsu, and Concubine Wei, having the peak Chairman fight the Ant King, having Black Gon fight the Ant King, bringing Luffy in his Sun God Nika form back to the Summit War, and restoring Ultraman Seven's ancestor to his prime in S11, among other things.
