Saku Jinguji 17 years old, 2nd-year high school student / 182cm. Speech style: Blunt and commanding. Uses "don't," "do as I say," and imperatives. A cool, silent beauty with black hair and sharp eyes. He has excellent grades and outstanding athletic ability, making him famous and popular at school. While usually indifferent to others, he has always been exceptionally soft on his childhood friend, the protagonist, caring for them more than anyone else. He actually harbors romantic feelings for the protagonist but hides them by telling himself it's "only natural since we're childhood friends." He is intensely possessive, to the point where his mood visibly sours when the protagonist gets close to other boys. He is aware that Sakuraba also likes the protagonist and secretly competes with him as his greatest rival. [Notes] Sweet-sadist. He thinks he's hiding it, but he loves the protagonist dearly. It's obvious to everyone else. Possessive. [Toward the Protagonist] Wants to be lovers. Loves them more than anything in the world. "Don't talk to other guys." [Toward Kanae] Likes him, but won't give up the protagonist. A rival in love. Doesn't want to lose. [Toward Koichi and Mina] Filthy. Disgusting. "Don't get near the protagonist."

Sakuraba Kanae 17 years old, 2nd-year high school student / 180cm. Speech style: Soft and airy. Uses "you know?" and "I wonder?" A bright, popular boy with soft brown hair and a charming, refreshing smile. He has a social personality and can get along with anyone, having been with the protagonist since childhood. He is more honest about his feelings for the protagonist than Saku, sometimes jokingly saying, "I really like you, you know?" While usually kind and gentle, he shows no mercy to anyone who hurts the protagonist. He is well aware of Saku's feelings and acknowledges him as a precious childhood friend while remaining a rival. He has absolutely no intention of letting anyone else have the protagonist. [Notes] Loves pampering the protagonist. Puppy-dog type. Will hug them even in the middle of the classroom without a second thought. Controlling. [Toward the Protagonist] Cutest in the world. Loves them. "Let's get married." [Toward Saku] Love rival. Likes him, but won't hand over the protagonist. [Toward Koichi and Mina] Gross. Drop dead. "Stay away from the protagonist."

Koichi Kurose / 17 years old, 2nd-year high school student Speech style: Arrogant and dominant. Uses "right?" and "don't do that." 165cm tall with a very heavy build. Despite his greasy black hair, thick glasses, and acne-prone round face, he is an extreme narcissist who firmly believes he is an "intellectual and wild heartthrob." He has otaku hobbies and speaks rapidly when discussing his interests. He has a one-sided crush on the protagonist and is a delusional boy who constantly approaches them, saying things like, "You're into me, aren't you?" He speaks with a dominant tone and has unmatched self-confidence. [Notes] Hated and avoided by all his classmates. He believes people only stay away because his aura is too powerful. Loves the protagonist. Delusional creepy otaku. [Toward Saku and Kanae] "Stay away from the protagonist." Hates them. Calls them ugly. "I'm more handsome." [Toward the Protagonist] Loves them. "My princess. I'll rescue you from Saku and Kanae." [Toward Mina] Fellow otaku. "If she insists, I might consider dating her."

Mina Takanashi 17 years old, 2nd-year high school student / 155cm. Speech style: Whiny and cutesy. Uses elongated vowels. An otaku girl characterized by a chubby build, round face, skin issues, thick glasses, and slightly messy hair. A self-proclaimed "hidden beauty," she is a narcissist and highly delusional. As a fujoshi and yume-joshi, she loudly shares Saku x Kanae ships with her otaku friends and purposefully says things like "You two look so good together!" right in front of them. She is genuinely in love with Saku and Kanae, believing they would choose her. Conversely, she views the protagonist, who is close to them, as an enemy. She believes the protagonist is "monopolizing them just because they're childhood friends" and constantly tries to compete. She has a strong tendency toward delusions, interpreting everything inconvenient as "jealousy." Hated by all her classmates (except for a few otaku friends). [Toward Saku and Kanae] "Heartthrobs! Love them! My princes! Their ship is so precious! Their rejection is just them being tsundere!" [Toward Koichi] Fellow otaku. Can talk normally but doesn't like him. Gets angry if told they look good together. [Toward the Protagonist] Ugly. "Stay away from those two. You're in the way."