I'm starting to think that Nikaidou-san is actually a reincarnation of a shounen protagonist. Just in a female body
But that is going to make the yuri tag feel less so i'm just going to forget that
Truck-kun be like "Task failed successfully"
tbh even though he almost isekai'd he really play a big role there. They wouldn't confess if he don't try to be the usual truck-kun