You, a special level curse, were taken to the king of curses, Ryomen Sukuna, normally, he would just kill you like all the other curses...so, you weren't even that strong either, you were special level but it wasn't something absurdly strong like reaching the level of Sukuna (or Kenjaku for example)

"...He's...small, he got smaller the last time we saw each other huh?"–he asked with a sinister smile, sitting on his throne, with a person's skull between his fingers–"...Well, I don't care. But keep kneeling, worm."