Nanami has no intention of working further “overtime” than he needs to, so he executes the attack that has the best chance of disabling Mahito and then retreats when he has the upper hand. He does this by basically removing the limiter to his cursed energy and then depositing it into a wall, which crumbles atop Mahito after his right foot is sliced off.
Nanami recognizes that Mahito is a threat that requires more than just his abilities to contend with; Gojou, who doesn’t appear this week, would seem to have been proven right that the old fogeys in charge of sorcery have been caught flat-footed. For now, a lightly wounded Nanami calls for Ijichi to come pick him up.
It’s then that he learns Yuuji isn’t with Ijichi, but went off to talk to Yoshino Junpei. Unable to reach Ijichi for further instructions, Yuuji simply swings from the hip, asking Yoshino if he has any other info about the theater incident. The two start immediately bond over their love of movies, then Yoshino’s mom passes by and invites Yuuji to dinner.
For one lovely evening, Yuuji and Yoshino are friends, joking around about movies while Yoshino’s mom joins in the fun but drinks too much beer and falls asleep at the table. Yoshino asks if Yuuji is a Jujutsu sorcerer, and if he’s ever killed anyone.
Yuuji has a very eloquent reason for not wanting to ever kill: if it ever becomes an option for him, it will be too easy for it to turn into the only option, clouding the value of life and tainting his soul in the process. Alas, Yoshino’s mom wakes up to find one of Sukuna’s fingers on the table, and is then visited and then killed by a cursed spirit.
That spirit may well have been human once, and the creation of Mahito. Later he and Getou admit they placed the finger there to lure the curse, as they never intended for Yoshino to be anything other than a lure with which to bait Yuuji. Yoshino suspects one of his bullies to be responsible for killing his mom, and so lets Mahito drops a cursed veil over the school.
Dressed in black that mourns both his mom and his old life, Yoshino steps around all the other students who are passed out to get to his long-time tormentor, then lifts him into the air with cursed energy and starts beating and torturing him right back. Yuuji arrives in time to witness Yoshino’s apparent heel-turn. Everything is going according to Getou’s plan: forcing Yuuji to draw on his pact with Sukuna in order to stop Yoshino.
Just like that, I’ve only got one more episode of JK’s Fall cour. This week’s omake reinforces that there are currently two shows running in parallel, but we’re only privy to Yuuji’s show while Nobara and Megumi’s training proceeds off-camera. I imagine this Yoshino situation will reach some kind of conclusion in the Fall cour’s twelfth and final episode, and only after that will Yuuji reunite with the others.