Nu, or at least I don't remember him ever being shown except from old tapes of his performances. F
The 12th generation Juichirou Arai, formerly known as Noda Akio, has already died (a few years ago)
http://www.mangago.zone/read-manga/hanakoi_tsurane/sa/mpn_chapter-2024770/pg-6/
But here they confirmed that he's not dead...
See here: "That annoying gramps died already..."
http://www.mangago.zone/read-manga/hanakoi_tsurane/sa/sa-c001/27/
Which part says he’s not dead? Kumajii mentioned Gensuke’s father, not his grandfather.
Exactly
Wait so is the other grandpa alive (sorry i dont rmb names ╥﹏╥) ?