Opening a Shop in Another World: From the Start, I Sell Demon Slayer Nezuko Merch

Not bad, but one of the ghost's abilities that is very buggy is the blood ghost technique. There is still room for gold, wood, water, fire, earth, wind, thunder and lightning, but this one is the most buggy. I've only seen it now in the mid-term, and I don't know if it has the ability to fuse in the later stage. It's more expensive. As long as you overcome the sunshine and go to the flower of the other side, it's very difficult not to die with the immortality plus, which is very strong. It's not that I don't understand the catastrophes among traditions. What I like the most is this. Of course, I only watched the early stage, not the later stage. I don't know the genre of the author, but if you write about ghosts, please remember to write these, because many protagonists have forgotten the ability of ghosts. The simplest combination of eternal life and immortality Damn, I thought I was going to be the King of Ghosts, but it turned out to be an ordinary card summoning style, with so many words for Bai Xue.

Who does this bonding level refer to Nezuko with? If it is with the protagonist, why does it also increase when interacting with Tanjiro [Thinking]