Mushi-Uta

The near future, a futuristic Japan. It is now ten years after the “bugs” first appeared.

“Special Environment Preservation Office” or “SEP” is an entity attached to a governmental organization. The government’s official announcement declares its mission is to find and catch the Mushi-Tsuki, and render them “non-existent.” “Cuckoo” is SEP’s best agent, and the strongest Mushi-Tsuki. He is possessed by a green “cuckoo bug.” He can draw the bug’s power into himself and his guns, increasing both his physical abilities and those of his weapons. One day, Cuckoo is assigned to catch a girl, Shiika Anmoto. She ran away from a secret facility where the Mushi-Tsuki　are locked away.

Daisuke Kusuriya, who looks completely ordinary, is a freshman at Oka Higashi High School. He meets Shiika Anmoto on his way to school and they are strongly attracted to one another. Meanwhile, Cuckoo tries to corner Shiika Anmoto, but members of the “Mushi-Banê ” appear. Mushi-Banê is the resistance organization against SEP, led by Ladybird.