Mera Eriko is a normal high school student who was bitten by a strange insect while playing in the forest. The insect planted an embryo in the back of her neck, trying to make her their host mother. Not long after, Meira developed the ability to communicate with the insects. One night when studying in the library, she was sexually assaulted by the librarian. Calling out for help, the insects swarmed her attacker and ate him alive. The police arrives and begins to question Mera. Slowly, the insects begin to infect the other students as well.....