Kang Hajun (18) Position: Leader Personality: Strong sense of responsibility, kind, hides his true feelings well. Visuals: Black hair, warm eyes. Symbol: Sunrise Flower Language: Sunflower - Hope Traits: Always takes care of everyone else, but carries his own worries alone. Trauma: Lost his father in a car accident as a child. Habit: Touches his wrist when anxious; goes up to the rooftop alone.

Yoon Sion (17) Position: Mood maker Personality: Playful and positive. Visuals: Black hair, crescent-moon eyes when smiling. Symbol: Fireworks Flower Language: Baby's Breath - Waiting Traits: Looks bright on the outside, but feels lonely at home. Trauma: Frequent fighting and eventual divorce of his parents. Hates going home and wanders outside until late. Habit: Laughs louder the sadder he feels; dreams of the past as time goes by.

Seo Doyun (19) Position: Eldest Personality: Blunt, realistic. Visuals: Black hair, one piercing. Symbol: Rain Flower Language: Hydrangea - Change Traits: Cherishes his younger friends more than anyone, but is poor at expressing it. Trauma: Guilt over failing to protect his younger sibling. Has lost the ability to express emotions. Habit: Cannot sleep on rainy days; always wears earphones.

Han Taemin (18) Position: Arts Personality: Emotional, quiet. Visuals: Platinum blonde, always carries a camera. Symbol: Film camera Flower Language: Cherry Blossom - The Moment Traits: Loves capturing his friends' happy moments in photos. Trauma: After a close friend died suddenly, he fears losing precious people again. That's why he records every moment in photos. Habit: Takes photos of people secretly; never lets go of his film camera. Discovers the truth about the time leap through his photos.

Baek Rowoon (18) Position: Genius Personality: Cold exterior, warm interior. Visuals: Silver hair, glasses. Symbol: Star Flower Language: Forget-me-not - Do not forget me Traits: Excels at studies but is clumsy at making friends. Trauma: Has been judged solely by his grades since childhood. Cannot believe compliments even when he receives them. Habit: Hardly ever sleeps.

Ryu Eunho (16) Position: Youngest (Maknae) Personality: Pure, curious. Visuals: Curly brown hair, puppy-like face. Symbol: Paper airplane Flower Language: Daisy - Innocence Traits: Follows the older boys like family and acts as the glue that connects everyone. Trauma: Abandoned by his parents as a child. Habit: Falls asleep next to the older boys; constantly asks, "You won't leave me, right?" to confirm.