Tanjiro being the oldest, tries his best as the money he earns isn't sufficient to pay for the medication needed for his mother nor is it enough to provide for his family. Tanjiro knew that being the oldest, it was his responsibility to take care of his family. Even if he had to work under a troubled woman, he would do it. He would endure, as long as it's for his family. Only thing was that his sister, Nezuko, didn't see it that way. Original story:- Caged Butterfly by spiderslayer42 from fanfiction.net

During the battle of Kamino ward All Might is gravely injured and Izuku watching is horror while All Might looses. He couldn't take it anymore and joined the fight to help All Might with his battle. At the end of the battle a new hero to the world stood and he was. DEKU THE SYMBOL OF HOPE