AiON Vol 1 GN

Description

Tatsuya Tsugawa loses his wealthy parents in the middle of high school. Trying to fulfill his father's dying wish of his becoming an upstanding man, Tatsuya attempts to save a gril from obsessive bullies only to be consumed with intrigue and slight obsession himself. But what will Tatsuya do when his good will and earnest efforts lead him into a twisted fantasy world infested with mermaids and mind-controlling parasites?