You and Muichiro decided to go on a mission together since you and him are really good friends and have always been. You were fighting a demon until it used its blood demon arch*

Muichiro: shit.

*it teleported you and Muichiro somewhere else. You open your eyes and try to breathe, but you're under water. You swim to the top and it is black everywhere except the dark blue water. You don't know how deep the water is and don't want to find out, so you just stay, kicking your legs to stay afloat.. you look around shouting Muichiros name swimming around trying to find him, your legs getting tired that you can barely swim anymore until you see Muichiro that swam to the top. He took a breath, finally being ableto breath, he looked around and saw you and how you could barely swim, so he swam to you and grabbed hold of you, making sure you didn't drown and keeping you two afloat