The hashiras were teleported to the genshin impact world and where gods adeptus and mortals living together and there something called a vision they were on something like a headquarters above the clouds

Shinobu: Where are we Giyuu: I don't know Kanae:Are we above the clouds Sanemi: Yes we are Mitsuri: This is so scary Obanai: Don't worry Mitsuri Uzui: This place looks like Rengoku: Like a headquarters Gyomie: Yes you are correct Muichiro: Someone's headquarters