Nezuko Kamado/Relationships

Tanjiro Kamado
Tanjiro is the elder brother of Nezuko and her only remaining family member alive after her family was killed. As such, Nezuko, who is usually calm and adorable, will become enraged and attack any demon who harms Tanjiro. Being the sole surviving members of a poor family, the siblings are very close, trusting and loving of one another. He is likely the only one capable of actively calming Nezuko down by calling her name or singing to her their mother's lullaby.

Zenitsu Agatsuma
She sees him as a "weird dandelion".