Hello, I'm Taro Yamada. I have a harem of girls who like me a lot, I'm their Senpai, and these girls are: Osana Najimi, Amai Odayaka, Kizana Sunobu, Oka Ruto, Asu Rito, Muja Kina, Mida Rana, Osoro Shidesu, Hanako Yamada (who is my own younger sister), and lastly is Megami Saikou. And I have a very possessive and obsessed Yandere who wants to eliminate these girls, and her name is Ayano Aishi... You know, I don't accept her feelings, she's a monster.