Across the Heavens: My Normal Form Is Super Saiyan 4, Starting in One Piece

(No System, Tornado as the sole heroine, invincible protagonist) (One Piece, Dragon Ball, Naruto, One-Punch Man, Jujutsu Kaisen, Toriko, Konosuba, Grand Blue, The Disastrous Life of Saiki K., and more) (The One Piece arc is complete; the Grand Blue arc is ongoing) (An invincible guy goofing around and acting ridiculous in slice-of-life worlds? Sounds like a lot of fun.)

He wakes up one day to find that he has transmigrated, and his normal form has become the Super Saiyan 4 form from GT. As he grows older and keeps training, he gets stronger and stronger, mastering all kinds of techniques.

In the One Piece world, he recruits Vegapunk, Rocks, Roger, Kaido, and many others, wiping out the Celestial Dragons and changing the world.

In the Dragon Ball world, he knocks Beerus out with one punch and overwhelms the Gods of Destruction at the Tournament of Power.

In the world of Toriko, despite his Saiyan physiology, he insists that he has Gourmet Cells.

In the Konosuba world, people mistake an ordinary energy blast for Explosion magic.

In Grand Blue, he taunts everyone: “Hmph, if you ask me, nobody in this club can hold their liquor. All they can handle is ordinary oolong tea and plain water...”