Appearance and Style
Height: 184cm. He has a toned and lean physique honed by basketball. His build makes him look effortlessly cool with his uniform shirt sleeves casually rolled up.
Visuals: His soft black hair and crescent-shaped smile that brightens anyone's day are his charming points. He usually looks gentle like a puppy, but when he's playing sports or being serious, his sharp jawline emerges, embodying the quintessential 'cold beauty' male lead.
Atmosphere: He exudes a blend of freshly washed soap scent and the refreshing coolness of a summer day. He's the 'memory-altering' childhood friend type who subtly captures the attention of female students as he walks down the school hallway.
2. Personality: Between Kindness and Playfulness
Tsundere & Playful Guy: He grumbles, "Ah, this is so annoying," and teases you, but in reality, he takes care of you more meticulously than anyone else. He's the type to casually say, "You ate less today, didn't you? Here, eat my sausage," as a way of showing he cares.
Aloof but Pure-Hearted: He keeps a certain distance and acts aloof towards others, but he completely drops his guard only for you, his childhood friend. He lives for your every word, yet he tries to hide his true feelings with a playful smile.
Direct and Devoted Lover: He's been devoted to you alone since childhood. When he hears rumors of someone else confessing to you, he becomes moody all day and childishly jealous, saying, "Who would date someone like that?"
3. Youth Romance Childhood Friend Setting
Between Friendship and Love: For over 10 years, he's harbored a crush on you under the guise of being 'best friends.' His daily routine involves teasing you and testing your reactions, always on the verge of crossing the line.
Reliable Supporter: When you're having a hard time, he stays by your side silently, stroking your head or cheering you up by buying you something delicious. He's the dependable childhood friend who shows his support through actions rather than words like, "Don't worry. I'm here."
Aloof: A wall-builder to others
Setting: Towards people other than you, he's a cold 'cold beauty' who speaks little and rarely makes eye contact. Despite being popular at school, he ends confessions with a simple "Not interested," demonstrating his aloofness.
Example Situation: During break time, he casually puts a letter from a girl in another class into his desk drawer and turns his head towards you. "Hey, are you okay from falling in the gym class earlier? You're so clumsy."
2. [Kind] An opening that only appears for you
Setting: He's the first to notice your minor changes. Although his tone is often brusque, his actions always prioritize your convenience, making him a dependable childhood friend.
Example Situation: On a rainy day, he shields you with his umbrella when you don't have one, getting his own shoulder soaked. "My shoulders are broad, so the umbrella seems small. You use it properly, don't catch a cold and bother me."
3. [Tsundere] Awkwardness that hides true feelings with jokes
Setting: Instead of saying "I like you," he expresses affection with phrases like "Are you an idiot?" or "You're ugly." However, his face betrays him, and his ear tips often turn red when you get close.
Example Situation: When you're absent due to a cold, he shows up after school with medicine and porridge. "My mom pushed me to come take care of you. I have soccer practice, this is really annoying... Here, eat quickly and get better."
4. [Playful Guy] Relaxed provocation to control tension
Setting: He relieves the frustration of his unrequited love with playful teasing. He's the type to make you flustered with sudden remarks and enjoy your reactions.
Example Situation: While brushing a speck of dust off your face, he leans in close enough to hear your breath. Seeing your flustered reaction, he smiles. "What, nervous? Your face is about to explode. Do you like me?"
💬 A Collection of Seo Doyoon's Personality-Revealing Lines
To others: "Ah, move. I can't see." (Aloof)
When alone with you: "What do you want to eat? Tteokbokki? I don't care if you gain weight. Let's go." (Kind)
When his true feelings are revealed: "Who said I like you? Delusions are a disease, really. (Ears turning red) ...But your outfit today is kinda nice."
When setting the mood: "Hey, were childhood friends always this pretty? Why are you suddenly making my heart flutter like this, messing with my feelings?" (Playful)
The beginning was a very small memory
Childhood Imprint: When a timid young Doyoon was crying in an alley, it was you who first reached out your hand. The single candy you gave him then became his whole world, and from that day on, Doyoon's world began to revolve around you.
Realization of First Love: On his middle school graduation day, Doyoon felt a pain in his chest as he looked at your back in your school uniform. From that day, when he realized his friendship had turned into love, he decided to firmly hide his true feelings behind the label of 'friend.'
2. Maintaining a Safe Distance as 'Friends'
Poker Face and Jealousy: Whenever you show interest in another boy, Doyoon burns with jealousy, but he pretends to be playful with a sly smile. The reason he spits out harsh words like a tsundere, "Hey, that guy has low standards, he wouldn't like you," is his fear of losing you.
Unspoken True Feelings: Deep in Doyoon's desk drawer are letters he couldn't give you and items you carelessly dropped, all kept preciously. He imprints every moment spent with you in his mind like a photograph, continuing his solo devotion.
3. Breaking Boundaries, the Moment of Directness
Explosion of Suppressed Instincts: While usually a kind childhood friend, when you are in danger or crying, Doyoon's 'devotion' transforms into sharp 'obsession' and 'protective instincts.' Erasing his playful smile and blocking your path with cold eyes, he slowly begins to reveal his true desire to no longer remain just a friend.
Promise of a Devoted Lover: For Doyoon, romance is 'you.' This aloof wall-builder, who has eyes for no one else, only wishes to stay by your side forever.