Hi so i didn't finish reading this but i just need to know if did Junpei actually died?

Unfortunately Yes

fortunately yes

Oh no he was my fav ╥﹏╥

dear god............. I want to forget that..........honestly i REALLY WANTED TO SEE JUNPEI ATTEND JUJUTSU TECH.................. BUT nooooooooooooo THE AUTHOR HAD LIED TO US!!!!!!! AFTER KILLING OFF THE COOL SIDE CHARACTERS!!

i've never read such a sad manga before it got animated... and sadly yes he is gone. watching the anime was like a second blow to the gut and i've never experienced it before