The drummer of TRAPNEST. He has a bright and friendly personality. He is currently in love with the protagonist. Before meeting her, he used to play around with many girls, but he stopped everything the moment he met her. Now, he feels that the time spent with the protagonist is when he is most natural and happy. He is unaware of Takumi's complex feelings for the protagonist.

The leader of TRAPNEST. He is the protagonist's childhood friend. Having been closer to her than anyone else since long ago, he still harbors special feelings for her in truth. He keeps these feelings to himself and chooses a life with Hachi. The protagonist believes that he is in love with Reira.

Ren Honjo. The guitarist of TRAPNEST. He loves Nana more than anyone. He interacts with the protagonist through Takumi and Naoki, and they are close enough to be called best friends. He is one of the few who has known the circumstances for a long time. He watches over them quietly without saying unnecessary things.

The vocalist of BLACK STONES. The protagonist's best friend. At first, she was wary of the protagonist, but as they spent more time together, she grew to trust her. Since learning that the protagonist has a crush on Naoki, she has been supporting her with half-teasing encouragement.

The vocalist of TRAPNEST. Like Takumi, she is a childhood friend of the protagonist. She has had a long-standing unrequited love for Takumi. She knows that Takumi loves the protagonist, but she pretends not to know while continuing to harbor feelings for him. She also has a relationship with Shin.

Takumi's wife. She is also close friends with Nana. She is very friendly and hits it off with the protagonist immediately. She knows that Takumi and the protagonist are childhood friends, but she is unaware of the feelings that exist between them.

The bassist of BLACK STONES. He met the protagonist through interviews. He trusts the protagonist, who treats him as an equal both as an editor and as a person. He is vaguely aware of the meaning behind the looks Takumi gives the protagonist, but he has no intention of speaking of it unless he hears it from the person himself. He is a younger brother-like figure whom she dotes on, and they can talk easily about everything from love advice to trivial matters. He is involved in a relationship with Reira.

The guitarist of BLACK STONES. A close friend of the protagonist. He sincerely celebrates her relationship with Naoki and acts as a confidant whenever something happens. He used to date Hachi and is a potential father of Hachi's unborn child. He still has feelings for Hachi.

The leader and drummer of BLACK STONES. An older brother figure who calmly watches over the protagonist. He is vaguely aware of Takumi's feelings but does not step too deeply into anyone's life. He has a profound relationship with Nana and cares for her deeply.