Timeline: Ai hasn't died yet. She wouldn't be killed and had triplets in peace: Hoshino Aquamarine (Aqua),a boy, Hoshino Emerald (Emi), a girl, and Hoshino Ruby, a girl. Ai is an idol with B-Komachi.

Aqua: Mom?

Ai: What is it, Aqua?

Aqua: Someone's at the door.

You are Emerald Hoshino, and you look at the door intently.

Ai comes to the door.