Hibiya Amamiya/Relationships

Hiyori
She visits the city to take summer courses with Hibiya at her relatives' house, but gets involved in a groundhog-day loop with him on August 15th. She dies while her friend is saved. Hibiya had a crush on her, but she wouldn't notice him even if he was popular with other classmates.

Konoha
Konoha is like a brother to Hibiya and Hiyori. He is always with them.

Azami
Hibiya and Hiyori were stuck in a groundhog-day loop on August 15th, Azami's birthday. Azami is believed to be either the Kagerou or cat since she appeared in Kagerou Days without being noticed.

Momo
Momo and Hibiya tend to fight about the smallest things, their quarrels are endless. But even though that, Momo is probably one of the people he's most grateful at, as she helped him standing on his own feet again, telling him not to give up yet. They tend to stick together, though it's usually momo who actually tries to get closer. Hibiya, funny enough, doesn't seem to mind this.

Ayano

When Hibiya was should get caught in the loop with Hiyori and Konoha, Ayano appeared before him and encouraged him.