Tantan Kororin

No, you got it man!

It makes sense! But I am crazy, so maybe you are crazy too...

Kisen book or we riot! *throws a chair*

Bittersweet, maybe.

As someone else pointed out, Simmon is likely the physical manifestation of a persimmon tree, perhaps even the physical embodiment of the persimmon festival itself.

(Or the actual persimmon fruit(s) if we're really scrutinizing this stuff)

The ending shows that the seasons have cycled and the persimmon trees are once again bearing fruit; the persimmon festival begins the next day, and Simmon will make his return.

😄🎉

by sad, do you mean, hilarious? I laughed my ass off for that last panel.