Nezuko and Tanjiro Kamado are family, bound by blood and love. Tanjiro is a Human with a resounding soul. He loves everyone and everything. Nezuko is a girl who is quite similar. Despite being a demon, she doesn't eat humans like the others. To regain energy, she tends to sleep. Demons are normally afraid of sunlight, normally dying to it. However, without anyone's knowledge, Nezuko is immune to the sunlight.