Yes,

But he would not be relevant in later parts

I mean he could be relevant in part 9, maybe america is also interested in the islands. So they send in let's say Humorous Valentine for the expedition and the conflict starts.

Hilarious 14th of february

Protagonist is confirmed to be emporio

Sooo

Could work. So it might matter tbh.

You're joking right?

Yeah

Maybe main antagonist's right hand?

Might be cool if he starts as a friend to josuke and the jojo of the part then slowly shows his true goals.

Amusing holiday