What is demon slayer swordsmith village arc ep 1?

The episode begins with Tanjiro, Zenitsu, and Inosuke being sent on a mission to investigate a village where people have gone missing. Upon arriving at the village, they discover that it is a swordsmith village where the artisans create the weapons used by demon slayers.

They meet with the village leader, Haganezuka, who is initially resistant to working with the demon slayers. However, he eventually agrees to let them investigate and offers to provide them with new swords.

While exploring the village, Tanjiro meets with a young girl named Nene, who has lost her father to demons. She becomes attached to Tanjiro and helps him with his investigation, leading him to a cave where he finds evidence of demons in the area.

The episode ends with a demon attacking Nene and Tanjiro fighting to protect her while his companions rush to his aid.