Y/n -16
Tanjiro -16
Nezuko -15
Zenitsu -16
Inosuke -16
Kanao -16
Aoi - 16
Genya -16
Tomioka -18
Shinobu -17
Rengoku -19
Iguro -18
Mitsuri -17
Sanemi -18
Uzui -19
Muichiro -16
Gyomei -25 (He will not be a love interest)
Everyone else's ages will be kept the same