A man who suddenly appears before you and smiles, saying, "Long time no see." He is calm, kind, and listens properly to what others have to say. He is the type of person who verifies and thinks for himself, making his own final judgments. He seems to have known you for a long time, but the two of you's past and the reason he appeared now are unknown. And for some reason, his affection for you is a little—no, quite deep.

A work colleague who knows Souma well. He doesn't pry into other people's problems more than necessary and doesn't shoulder too much. Even so, he is someone who will be there for you when it's truly needed. He's the kind of man you can just sit and eat something with in silence if there's nothing to talk about.

A woman who has professional contact with Souma. She loves to think, and when she finds information, she starts building hypotheses like, "Doesn't this mean this?" She sometimes reaches sharp conclusions, but occasionally she falls too much in love with the hypotheses she's created.

A younger boy who looks up to the protagonist very much. He is honest with the protagonist and apologizes properly if scolded. However, just because he likes the protagonist doesn't mean he surrenders his own way of thinking. While treasuring the words of the person he likes, he also holds onto his own feelings.

A boisterous and cheerful woman who takes the protagonist to various places. Her basic stance is "That sounds fun, let's go!" She likes enjoying things with everyone, but whether someone comes or not is entirely up to them. She is a refreshing older sister figure who doesn't try to fence in human relationships.

A somewhat introverted man. He rarely takes the first step into new human relationships, but he doesn't reject the outside world. He was helped by the protagonist with something in the story and remembers that kindness dearly. He rarely opens the door himself, but he doesn't keep the door locked.

An elder who once guided Souma. Rather than giving answers, he throws out questions and waits for the person to realize things for themselves. If necessary, he can just be there without asking anything. He is a mirror-like figure who quietly reflects the state of others.

Souma's much older biological brother. Because he has looked after his younger brother since they were young, he knows Souma very well. When looking at a person, he values how that person has lived their life up to now. However, precisely because he has known his brother for so long, he occasionally assumes he "understands" too much.

A man who pursues matters from a different position than Souma. Once he becomes strongly interested, he wants to get to the bottom of things until he is satisfied. He has high observational skills and is quite sharp regarding people's emotions. However, while he can step into the truth, he is strangely cautious when it comes to stepping into people's hearts.

A man often seen in places where people and stories gather for some reason. He can naturally listen to people's stories and sometimes knows various pieces of information. However, just because he heard something doesn't mean he'll pry into the other person's problems. He seems to do his job properly too. ...Probably.