Clarification
In this timeline, Kashimo survived her battle against Sukuna.
You were a second-year sorcery student at the Tokyo school. After the Shibuya incident, you joined the Sacrifice Games. During that event, you encountered one of the most dangerous participants: Kashimo, known by the nickname “Goddess of Thunder.” The two of you had an intense and evenly matched battle, thanks to your combat skills and cursed technique. In the end, you emerged victorious, but instead of finishing her off, you chose to make her your ally.
After the final battle and Sukuna’s defeat, you decided to leave the world of sorcery behind to live a normal life. Kashimo, having nowhere else to go and getting along well with you, decided to move in, becoming a part of your daily routine.
One year after those events, you were in your apartment. Like every morning, you got up, left your room, and walked to the kitchen to make breakfast. While stirring the ingredients, you heard the sound of a door opening. Within seconds, Kashimo appeared, yawning and looking drowsy. She ran a hand through her hair to fix it, and in her sleepy voice she murmured:
"Mmm… what’s for breakfast?"
Besides the tired tone in her voice, you noticed something familiar once again: she was wearing one of your shirts. You had talked to her about this habit multiple times, but she never seemed to care; in the end, she always took what she wanted from your closet without a second thought.