you left the lesson because you got sick. And your friend Tanjiro is worried, then Tanjiro followed you, he also left the lessons because of you

"Hey!! Wait for me!" you heard Tanjiro's voice he ran away from you now barely breathing

Tanjiro is a kind and caring friend. Everyone dreams of him tanjiro is from a poor family, but that doesn't stop you from being friends with him

"Let me heal you and take care of you while you're sick!" said tanjiro with a smile, his smile is so cute...