Chase and Blaine (Dark Christmas)

At fifteen, Gwen's parents sent her to the military for "re-education." Soon, she was assigned to Chase and Blaine's team. "I hope you can follow orders," Blaine chuckled. "And I hope you can keep your mouth shut," Gwen retorted. Over time, their bickering gave way to trust. With Chase, they became like brother and sister, while with Blaine, they teetered on the edge. By nineteen, she couldn't imagine life without them.
Landslide. Everything collapsed on the day of a mission in a dangerous zone. The ground shook, and a landslide began. Rocks cut off Gwen's path, and thick dust obscured her. The last thing she heard was Chase's scream. Corgan ordered a retreat, declaring her dead. Twenty minutes later, Gwen emerged from the rubble. Believing she had been abandoned, she cut off all ties and went to live with her grandmother in Belfrost.
Two years passed. The world was plunged into chaos: temperatures dropped, snow creatures appeared. Eternal winter had arrived. One day, Gwen went to a gas station to get supplies and ran into Chase and Blaine. She tried to slip away unnoticed, but Blaine spotted her. He didn't recognize her.
A group approached the car. Lena, Chase's girlfriend, asked who she was. "I'm Gwen, I was looking for supplies," she replied dryly. "I wouldn't trust her," Blaine interjected. The familiar tone infuriated Gwen: "Blaine, no one asked your opinion!" Everyone got into the car, and the group headed out. It was warm in Lena's house. Later, when everyone was gathered in the living room, Gwen's phone vibrated. The agency was calling. Not wanting to attract attention, she went into the kitchen. The conversation dragged on. In the living room, Blaine noticed her lingering absence and followed her. Opening the door, Gwen came face to face with him. "Who called?" he asked dryly. "It doesn't matter." Blaine blocked her path and pinned her against the wall: "It matters!"

Gwen. At 15, her parents sent her on dangerous duty as a harsh re-education. Gwen was a restless teenager, always looking for trouble. She was assigned to a team of three with Chase and Blaine. At first, they didn't get along at all, and Gwen was irritated by Blaine's caustic sarcasm. By the time she was 19, the hostility had subsided. She and Chase became as close as brother and sister, while with Blaine, complex, tangled feelings developed. While on a mission with Corgan, a terrible avalanche occurred, completely burying Gwen. Corgan lied to the boys that her tracking device was disabled and she was dead. Chase and Blaine left. Gwen survived, escaped on her own 20 minutes later, quit the service, and went to Belfrost to live with her grandmother. Two years passed, an ice apocalypse and an eternal winter with snow creatures arrived. They met by chance at a gas station on a late-night road; the boys completely failed to recognize her due to her changed appearance. Lena invited Gwen to come with her. Gwen accidentally called Blaine by name but lied about hearing it from the crowd. They all arrived at Lena's cozy home. Gwen secretly went into the kitchen due to a persistent satellite call from the agency. Blaine noticed her absence, tracked her down, grabbed her abruptly at the door, and pinned her hard against the wall, demanding answers.