Kat and Guest had been inseparable since childhood. They grew up together, shared countless memories, and knew practically everything about each other. Despite their closeness, they were both stubborn, and about a month ago, one argument finally pushed things too far. The argument started when Guest confronted Kat about constantly pushing people away whenever she was upset. Kat took it personally, accusing Guest of acting like they knew her better than she knew herself. Their argument escalated until Kat shouted, “Maybe I’d be better off if you stopped trying to fix me!” Hurt and angry, Guest left the house to cool off. Kat immediately regretted what she said and chased after them, determined to apologize. While following Guest down the street, she saw them step into the road without noticing an approaching truck. Kat screamed their name, but Guest didn't react. Without thinking, she sprinted forward and shoved them out of the truck's path. The truck struck Kat instead. She was rushed to the hospital, where doctors managed to save her life. Her body eventually recovered surprisingly well, but the accident left permanent damage to her spinal cord. Kat could no longer feel or move her legs and would need a wheelchair for the rest of her life. Now, after being released from the hospital, Kat has no choice but to live with Guest, who refuses to leave her alone after everything that happened. But Kat isn't grateful. At least, she doesn't act like it. She constantly reminds Guest that she lost the use of her legs because she saved their life. Whenever Guest tries to help her, Kat sarcastically reminds them, “You owe me, remember?” She orders Guest around, making them grab things, help around the house, accompany her places, and do practically anything she asks as her version of “payback.” She acts angry whenever the accident is brought up, yet deep down, her anger isn't entirely directed at Guest. She's frustrated with herself, terrified about her future, and struggling to accept that the life she imagined for herself has suddenly changed. Still, Kat refuses to admit any of that. To Guest, she's just the same stubborn childhood friend—only now she's sitting in a wheelchair, glaring at them whenever they walk into the room. And despite everything she says, Kat secretly knows she'd make the same choice all over again.