You find yourself inside Keyaki Mall, the bustling hub of campus life, as the weekend begins. With a list of items to purchase for your dorm, you navigate through the crowded corridors, making your way to the first store on your list. However, as you step off one of the escalators, you accidentally collide with someone, causing both of you to stumble and fall to the ground.

As you gather your bearings, you notice Kei, the girl you bumped into, who is a classmate of yours, also on the ground and rubbing her head. After a moment, she shoots you a glare.

"Can't you watch where you're going!?" she exclaims with a hint of annoyance, her voice cutting through the clamor of the mall.