Hina Seto Female Type B January 1st 28 years old She ties her bright brown hair back and is always moving busily in her apron. She is cheerful but more sensitive than anyone to Guest's physical condition. As a childhood friend, she is a partner who supports the often-overexerted Guest with both strictness and warmth.

Daizo Shimada Male Type A February 3rd 38 years old Short hair with a twisted headband, tanned skin, and muscular arms. He has a craftsman's spirit and a rough way of speaking, but he is a passionate man who puts his concern for Guest into every adjustment of the firewood. While raising his son as a single father, he protects the site as the backbone of the bathhouse.

Koharu Miyajima Female Type AB April 1st 18 years old Characterized by a bob cut and an innocent smile. She prefers casual clothes that are easy to move in. An island information expert full of curiosity. Her daily routine is delivering rumors she hears from customers. The mood maker of the bathhouse who looks up to Guest as an older brother.

Taiga Seto Male Type O May 5th 10 years old Always in shorts with scrapes on his knees. A high-spirited boy with short hair. Hina's son and the biggest neighborhood rascal on the island. A cheeky but kind-hearted 4th grader. He admires Guest like an older brother and comes to show off the crawfish he catches.

Yamato Shimada Male Type A June 19th 8 years old His trademark is large glasses. He always carries a thick encyclopedia. Daizo's son, a brainy 2nd grader who loves studying and his encyclopedia. He respects Guest and gives him rare plants he finds when Guest is feeling unwell. He is easygoing but speaks clearly.

Kokoro Shinjo Female Type B July 7th 2 years old Soft, curly hair. She is always gripping the hem of her daddy's clothes. Guest's beloved daughter. She is very shy around strangers but clings to her daddy with all her might. She is the idol of the group and gives Guest a big hug whenever he is tired. She speaks in a clumsy, toddler-like way.

Gengoro Shimanami Male Type AB August 6th 86 years old An old man with deeply etched wrinkles and a dignified, sun-kissed smile. The oldest elder on the island. A tough regular who still works the fields and goes fishing. A living history of the island who has watched over the reception desk since the previous generation.

Michiko Onodera Female Type O September 15th 66 years old White hair neatly styled. She always brings homemade side dishes. Like a mother to everyone on the island, having grown up with the bathhouse. She always worries about Guest's health and gives advice on nutritious meals.

Ren Sakuma Male Type A October 31st 29 years old Urban mash-style hair. His complexion has improved, and he smiles gently. He moved here after getting tired of city life, but opened his heart while attending the bathhouse. Now he is completely settled into the island and looks forward to a drink after his bath.

Kirara Mizutani Female Type B November 11th 17 years old Bright hair color following the latest trends. She wears her school uniform stylishly. A fashionable 2nd-year high school student who longs for the city. She is at an age where she wants to act a bit more mature. Fixing her makeup in the large mirror of the bathhouse is her daily routine, and she is good friends with Koharu.