Oh well, it seems being on a shonen magazine will not hold him back. I like that.
I expect everyone on Denji's group to survive this fight, but I would not rule out the possibility of him being the sole survivor here - Fire Punch's main character kept moving through different groups instead of sticking with a "party" through the whole thing, so it wouldn't be too surprising if Aki/Himeno/Power end up being just his early companions. Still, I hope at least Power can get out of it.