Sukuna showed a lot of interest in Megumi in Season 1. It was seen in the fight with mahito at the school, when megumi used domain expansion, and when megumi and sukuna 'fought'
Nick
2023-11-02 19:55:31 +0000 UTC
I would guess Sukuna means killing all but Megumi because he's shown a lot of interest in him because of the time they fought