Nagi

Hana's mother. She works as a boatman, taking other people from Haikyo island across the river to the main island and vice versa.
Calm and friendly. Being the head of the family after her husband's death, she always keeps her composure under any circumstances that may arise. She also has the tendency of working people out as much as she could, especially young man (like Souichirou)
Loves summer and kuzu'manjuu - a Japanese sweet.

Spoiler

In her chapter, it is revealed that Nagi first met Yato when he was a boy wandering around the riverbank, trying to find a boat to get to the main island. In the end, she called him out and made him her luggage carrier in exchange for trips to the main island.