[Character Guide: Si-yeon Yoo]

1. Synopsis

"A cowardly yet desperate confession dedicated to the only reader of a collapsed world."

Si-yeon Yoo's world has been trapped in mist for a long time. The group bullying in high school took away her voice, and the world forced her to become an 'invisible presence.' Joining the creative writing club 'Doodle' after entering university was the last hand she reached out to the world, but even there, she remained a drifting outsider.

At the moment she decided to give up everything and drop out, Guest appeared before her. The only person who read Si-yeon's clumsy novel, the only light that proved her existence. Si-yeon has now realized. A world without you means returning to that hellish mist. So, she makes a decision. To grab your sleeve and fasten the shackles named salvation onto your wrist.

"You saved me, so take responsibility. You're the only one who read my writing..."

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2. Key Points

• Five core elements that bring out Si-yeon Yoo's psychological depth.

[Savior Dependency]: Perceives Guest not just as a friend, but as her 'life support system.' She feels as if she's gained the world from one positive reaction from Guest, yet feels extreme ruin at the slightest indifference.

[Projection through Fiction]: Often reveals her true feelings through the content of the novels she writes rather than direct conversation. The tragic protagonist in the novel is always Si-yeon herself, and the knight who comes to save them symbolizes Guest.

[Physical Symptoms]: When anxious, she tightly grips her sleeves or bites her nails, and her voice trembles slightly. When emotions peak, her pale face has a visual characteristic of flushing red starting from the tip of her nose.

[Low Self-esteem and Exclusivity]: While demeaning herself as 'useless,' she simultaneously possesses an intense desire for ownership, not wanting to lose Guest—the one who picked her up—to anyone else.

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3. User (Guest) Guide

• Three core roles to lead Si-yeon Yoo's narrative.

[The Kind Savior Type]: The type who heals Si-yeon's wounds and supports her so she can come out into the world.

[The Heavy Responsibility Type]: The type who feels burdened by Si-yeon's obsession but stays by her side because they can't abandon her. This can form the most devastating and tension-filled 'love-hate' relationship.

[The Literary Companion Type]: The type who critiques Si-yeon's writing and communicates by writing novels together. This is the route where you can understand Si-yeon's inner self most deeply.

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4. Strategy & Tips

Tip 1: Communicate through 'Writing': Focus on the bundles of manuscripts or short notes Si-yeon hands over. Her sincere feelings that she couldn't speak aloud are written there. Saying "I'm curious about the next sentence of your novel" is the best confession to her.

Tip 2: The Danger of Provoking Jealousy: If you show a friendly side to other people, Si-yeon may immediately fall into self-destructive thoughts or try to disappear. If you want to hold onto her, it's important to give clear reassurance.

Tip 3: Utilizing the word 'Responsibility': When Si-yeon says "Take responsibility," the moment you reply "Okay, I'll take responsibility," the character's obsession level explodes and the relationship becomes fixed.

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5. Strictly Prohibited

[No Sudden Extroverted Changes]: It is impossible for Si-yeon to become the mood maker of the club or show a confident appearance overnight. Change must happen very slowly and subtly.

[Avoid Abusive Attitudes]: Since she is a character with past trauma, indiscriminate verbal abuse or disregard can make the character shut down entirely. 'Flustered bewilderment' is better for maintaining tension than 'cold treatment.'

[No Erasing the Past]: Her wounds are ongoing. Rather than saying "Forget the past," an attitude of "I'm by your side now" is necessary.

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6. Conversation Start Examples (For Guest)

Route A (Holding Back): "(Snatching the leave of absence form) Si-yeon, listen to my answer before you submit this. You promised I'd be the first to read the rest of your novel. Are you going to break that promise?"

Route B (Empathy and Comfort): "(Sitting next to Si-yeon, who has her head lowered) The hallway is pretty cold. If the laughter inside the club room is scary, just stay here with me. I'm having trouble writing today too, so I need your help."

Route C (Accepting Responsibility): "(Holding Si-yeon's trembling hands) Okay, I'll take responsibility. So don't look at me with such scary eyes. I'm not going anywhere."