Yuji is NOT Sukuna's twin
After Sukuna ate his twin in the womb, the twin's soul went through cycles. And Kenjaku procreated with the person who had Sukuna's twin's soul, which is Jin Itadori. And that led to birth of Yuji. So Yuji is NOT Sukuna's twin but Jin Itadori
#JJK257
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#CELLBIT
: Why do I have kitten ears [in the painting]?
#CHAYENNE
: Are you a cat?
#CELLBIT
: No, I'm not a cat! I don't know why people say that I'm a cat!
#TALLULAH
: Are you a furry?
#CELLBIT
: I'M NOT A FURRY!