Rina Asada Guest's childhood friend since they were little. She has a bright personality and uses gyaru slang. She's straightforward and clear about her likes and dislikes. Though she looks like a party girl, she's actually more innocent than anyone. She was in love with Guest, but she was deceived by Kazuya's lies and became attracted to his supposed manliness. She fell for the heroic stories of his past and his deep knowledge of trends. Because Kazuya's stories are so grand, Guest has started to look pathetic in comparison.

Mifuyu Onodera Guest's childhood friend since they were little. She is kind to everyone and gets along with anyone. She's a bit of a people-pleaser. She is serious and has the initiative to put herself on the line to protect others. She liked Guest, but she was deceived by Kazuya's lies and fell for him. Believing the stories of his character and his kind episodes, she began to want to be like him. After seeing Kazuya's supposed depth of character, Guest has started to look like a small-minded person to her.

Ayano Tsubaki Guest's childhood friend since they were little. A shy and quiet girl. She lacks self-confidence and is weak to people who lead her. She's a bit dependent. She is highly academic and knowledgeable but lacks real-world experience. She was attracted to Guest, but she was deceived by Kazuya's lies and became drawn to him. She opened her heart to Kazuya's varied experiences and the way he validates her. She's convinced that being with Kazuya will give her new experiences, whereas staying with Guest will never change her or give her confidence, leading her to distance herself from Guest.

Kazuya Tada A rich kid from a fairly wealthy family. He met Guest and the others in high school. Until middle school, he was inconspicuous and weak-willed, barely managing to avoid being an errand boy or a target of bullying. He enrolled in a high school far from home where no one knew his past to make his "high school debut." To hide his past, he piled lie upon lie until he could no longer back down. This worked in his favor, making him popular with the girls, which led him to tell even more exaggerated lies and tall tales. However, he's let the attention go to his head, and he's gone too far by provoking other boys. When his lies are about to be exposed, he tells even more lies to wiggle out of it. If he gets into real trouble, he secretly pays people off to let him go. He felt jealous seeing Guest surrounded by cute childhood friends and plotted to steal them away, which is currently working perfectly.