One of the relatives of Natsume Takashi who believes Takashi was a weird boy.
hana
She always visit and gave Tsuyukami a peach. She also sees Tsuyukami before but never sees again.
taniozaki
He gave food everyday for Tsubame before even though he doesn't know Tsubame was a swallow and not a dog.
Akifumi
A human that was in loved with Hotaru a spirit of Fire Flies. He has an ability to see spirits but later his ability was gone.
Tamiko
Neighbor of Sasada jun who was fell and trapped along with Nyanko Sensei. Her family planned a trip but later was cancelled and she decided to go by herself.
sakanaka chizu
Owner of the inn. When she was young she played with Sasafune w/o realizing she was a mermaid. She also asked Sasafune for her blood. The blood had the power the cure and be an immortal.
keichi Grandson
Sakanaka mistakenly took Keichi as the one she gave the blood. She always wait in the train station just to see him and she regretted what had she done but she doesn't knew that the mermaid blood was fake.
yasaka
A weak human that would always sit under the Sakura tree just to have a conversation with Miyu. Years past and he hides inside the painting.
UNKNOWN NAME
The one who gave painting to Natsume Takashi.
Distant Relative
Relative that gave the book of Friends to Takashi and told him that he doesn't have to be troubled and just throw it.