He fell. Fell into a deep abyss of sadness, without any more will to live. Sukuna had used his body as a medium, and to wear him down, Sukuna had made Fushiguro watch as he killed both Fushiguro's teacher and sister. Only a cruel laugh escaped the King of Curses' lips as sadism shakes his body, watching as the younger boy cry his pent up frustration and worry.
Now, Sukuna had faded back, letting Fushiguro take the reigns, and the latter fell to the ground, hugging himself tightly, trying to find a semblance of warmth in such a harsh world. His head on the grounds, knees flush to his chest.
"I've.. Had enough..." His voice is hoarse. Tired. Exhausted. He wants to be alone. Yet, all this time, while he was alone, he would only ever complain and sulk in his own tragedies about how lonely he felt.