Oh yeah, I’m not sure if someone has already mentioned this, but Jujutsu Kaisen isn’t the first time Akutami-sensei has used the word 「開(フーガ)」or “Open”. He’s already used it before in his one-shot, No.9 pic.twitter.com/QZUmQavnn3

As you know Jujutsu Kaisen is Akutami Gege's first series but not his first manga. Before that he also drew a few one shots. No.9 is one of them. The female lead of No.9's Kanji name is 愛 (love) and Furigana is めぐみ(Megumi). pic.twitter.com/nS2eUvzXnP