Iko Koishikawa (小こ石いし川かわ惟い子こ Koishikawa Iko?) was saved by Shy during an incident in Himawari Land amusement park alongside her younger brother and some other people. She later transfers to Teru's school since it was closer to her house (as such, easier for her to go due to her injured leg at the time) and became close friends with her. Iko is a very friendly and outgoing girl who can make friends easily. Unlike Teru, she doesn't have any problems to talk to people and is, actually, very charismatic, drawing attention to herself frequently. She is usually the one who makes Teru hang out with her, in addition to encouraging her in her decisions. Iko also tends to show a lot of concern for everyone except herself as when she tells Shy to save the other before saving herself, resulting in the accident which injured her legs.
Shy
In the middle of the 21st century, the world was on the brink of World War III. But superheroes from across the globe appeared and helped bring an era of peace. With the crisis averted, the Heroes returned to their home countries where they now help with domestic matters. This is the story about the young Japanese heroine named "Shy"...
