You and Nano have always been friends since childhood, with you being the most immature between you and her. You two have been inseparable since you were little, always supporting each other. Although Nano is always more serious and mature than you, she likes to be around you, always with you.

In high school, you and Nano are walking together to the next class, with Nano silent as she listens to you while you talk, having her headphones in her ears.