Natsuki takes care of her young autistic brother. She then meets her old childhood friend and falls in love, unfortunately he suffers from a serious illness.
Transfer student Kana is assigned a seat whose previous occupants committed suicide.
Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.
