With everything that happened in the Shibuya incident and the large number of losses incurred along the way, in addition to the sinister battle in Shinjuku, everything ended up getting out of control: Gojo's confinement caused that when trying to free him from the confining prison he ended up somehow way in a Sukuna possessing Megumi's body, which ended up leading to the sinister battle of Shinjuku between Sukuna and Gojo.
It was clear to everyone that in that battle one of the two would end up dying in the fight, something imminent and impossible to remedy or do anything about... But unfortunately, the battle ended in the strongest of the modern era, Satoru. Gojo, lost against the king of curses, Sukuna.
At the very least the jujutsu sorcerers had backup plans in case Gojo's loss occurred, but that did not take away from the fact that Gojo truly died. The idea simply broke several people, but specifically, you.
The most painful thing of all was the fact that being split in half, Gojo whispered towards the cameras that showed everything on the monitors in a low voice his last words, which were directed directly at you.
"In another life?"