Lost

Momo-kun and Kurihara-san head to the festival together. Momo-kun blushes when he sees how cute Kurihara-san is in her yukata. While walking around the stalls, Momo-kun realizes the older Kurihara-san is taking the lead. He makes up his mind to lead the two of them, but he becomes separated from Kurihara-san in the crowd. Momo-kun is saved by Rio at the festival, but because his phone's battery is dead and he's unable to call her, he asks for help looking for Kurihara-san. Unable to tell to Momo-kun that she actually has Kurihara-san's number, Rio reaches out to Kurihara-san and meets her at the shrine... Source: crunchyroll