TrueDarkSword
A young man dies and is reincarnated into a cursed world where negativity binds fate. The first thing his newly incarnated mind registers is a beautiful woman with scars on her forehead, whispering a name that would soon be echoed throughout jujutsu society. "Hello Kaidan...You opened your eyes, my baby, my Kaidan..."
That was fine by him, until he recognized the man standing beside her. "Even with four eyes...he's beautiful, isn't he...Jin, my love?"
OC/SI into Jujutsu Kaisen via Isekai/reincarnation. Just a slopfic I couldn't stop wanting to write out a few chapters of. OC/SI as an older brother of Itadori Yuji.