Midnight Coffee (SatoGou)

Ash and Goh were once inseparable, but now that they're older, they're starting to drift apart. When Serena invites everyone for a long vacation in Kalos, Goh thinks it might be the perfect opportunity to reconnect with him again. That is, until he comes to two concerning realisations: He has a crush on his best friend, and so does everyone else.
SatoGou vs amourshipping, advanceshipping, negaishipping, etc
and KohaHika ofc!