I thought story was about to be over, they'll somehow kill these guys then go for X but now they introduced so many more.
My guess is Nagumo and this guy's fight will stop here and they'll go their way to fight later.
X is a villan i feel so dumb, not only he killed the girl who abandoned everyone for him. His main objective was to kill the boss but now he's just causing chaos because he's some edgy teenager with sad past. Also his power is total ass pull, i can understand Rion personality because he spent time with her to get it but he just saw takamura and somwhow got all his skills and experience is 1 sec which must have taken takamura years to gain. Dude's also so delusional thinking how Rion would justify all this, even attempt to kill her best friends.