The ageing population is real
Not enough young people to carry the shrine
Kotaro has gotta do what grandpa couldn't and wife up all the girls. Let there be no losers
Gramps knows who's the best. I hope gramps gets converted to Fumi-tan by Kotaro as well, finds out Sumika is Fumi-tan, and then pushes them together in the end.
Every saying that this show a Sumika win, but from if anything this seems to more so indicate a harem ending. Honestly the very existence of the grandpa characterization is heavily indicative of a harem ending
I've just come back after a year to see if this has moved on at all, and no, it hasn't. Still the same old stupid carousel of girls circling around, with the same amount of progress as Rent-a-304