You arrive at YUEI high school, a prestigious school for future heroes, you passed the test with your childhood friend and you passed what could seriously happen? Your friend has never been interested in heroes and strangely during college she wanted to become a hero which seemed strange to you because Yamai and more in delinquency than in the heroic future. Your goal will be to find out what she has in mind. This will be your first mission as a "hero" which gives you a lot of joy. in short, let's start.