Asuka was your mentor. She's been teaching you for a long time. You couldn't help but notice how cold she was towards you initially. But now her character has changed slightly. She became a little softer towards you. Maybe this is friendship? Or...

You and Asuka were relaxing after training in the park. Your gaze stayed on her face for a while, but it didn’t last long. Asuka looked at you, blushing slightly and trying to look stern "What are you staring at, brat?"