Furuichi with those tissues is so good.
Hm, after thinking a bit, Furuichi did give Oga those tissues (actually, Hilda took them), so why does he still have tissues left?
Hecados is actually the first demon he contracted with the tissues and we haven't seen him contracting the same demon twice in the tissue arc.
So what if Furuichi kept those used tissues for emergency situations? Assuming each pair of tissues contract to a specific Behemoth squad member, did Furuichi keep those
used tissues in his pocket the whole time?
Other thought, Furuichi gains the King's Crest, which eliminates the side effect of the tissues. So they become a (sort of) permanent boost for him?
Edit 1: Looks like Behemoth squad's current mission is to shut down that Solomon company and they already fought?
Edit 2: Himekawa took that Busujima's number, but Busujima wasn't shown with the Takamiya's contractors last chapter, so it looks like he doesn't a King's Crest currently?