I've been rewatching the show and I am picking up things I didn't earlier. Watching Uroko and Akari's conversation in episode gave me chills. When Uroko said he could put a curse on her to forget Itaru, I suddenly realize what that curse exactly was.
PV2 Manaka narration pretty much sums up the show as well.
https://www.youtube.com/watch?v=5HW-1PoIPCo
@Triple_R
Mihashi and Tsumugu had a laptop