ItaOkko

ItaOkko is the slash ship between Yuji Itadori and Yuta Okkotsu from the Jujutsu Kaisen fandom.

Canon
Neither of the two knew each other before Shibuya Incident, Yuta was informed about Sukuna’s dangerous destruction; which lead to his classmate Inumaki Toge’s arm getting removed. When Yuta heard about this, it was clear he was very angry and frustrated towards Yuji and even vowed to kill him himself. Yuji wasn’t really aware of Yuta, but was mentioned of him by Megumi once.

Yuta arrives at where Yuji and Choso is facing off against Naoya Zenin and darkly comments on how Yuji isn't alone. Yuta eventually leaves Naoya to deal with Choso while he chases after Yuji and surpises him with his speed. Yuji jumps over a car as Yuta tries to slash him but fails. Yuta thinks to himself about how he was sure he sliced Yuji and tells Yuji he's like Maki Zenin. Yuji grabs a car and throws it at Yuta who throws it back at Yuji. Yuta asks if Yuji is surprised and says he doesn't look like he's the power type before adding on that he's actually on the weak side.