Anime Crossover: Contracting a Stand User from the Start

The protagonist transmigrates to Fuyuki City with the Key to All Life and contracts the Stand Killer Queen.

Killer Queen has an A in power and a B in speed, and can turn anything it touches into a bomb.

The protagonist discovers that this power is far from reaching its limits.

To survive in this world, he works at a convenience store to earn money while secretly investigating clues about the Holy Grail War.

He knows that only by finding more Contract Spirits can he establish a foothold in this dangerous world.

When the protagonist's fingernails start growing wildly again, and Yoshikage Kira's obsession surges once more, he smashes his fist into a wall.