Hotaru Kanzaki

Hotaru Kanzaki is a first year high school student. She attends the same high school as the man she likes Kakeru Haruna, who is a teacher at the school. She use to go on same trains as him and since then had liked him. When she first enters the school she meets his younger brother Kousuke Haruna. From there sparks a new life for Hotaru Kanzaki.