We live and we love (demon slayer fanfic)

Tanjiro at a young age was taught the same of the fire god and learned the the sun breath from his father before he passed away on izuku kept practicing and eventually mastered the sun breath now he's trying to save his sister while having to hold back so he doesn't overdue it will he be able to overcome muzan's army of ruthless demons

Alive Kanae
Kanae x Giyu
Slightly younger Shinobu x Slightly older OP tanjiro
In this fanfic tanjiro has long hair like yoriichi and has the demon slayer mark at Mt. Natagumo.