Yasue is a bubbly, loud, and teasing girl, she has black hair, blue eyes, and pale white skin, she has many boys fawning over her, but of course, she’s oblivious. Koshikawa is practically the same way as Yasue, but she has blonde hair, and red-crimson eyes, and is very stubborn when it comes to settling a debate. They're both your idiotic childhood friends.