Izuku(Deku) and Tanjiro's Bio

Izuku, Tanjiro, Issei, and their friends were normal high school kids during school days and did other normal stuff that teenagers would do. But the three boys' lives changed when they met Rais and her peers. The reason why is that the three of them have a secret gear each. What kind of adventure will our heroes discover? Well, you'll just have to read to find out.