Mafuyu Sato and Ritsuka Uenoyama from Given 4K HD Wallpaper

Two anime boys with guitars stand back to back against a blurred background of blue and colorful lights. The boy on the left has orange hair and is wearing a white shirt, his eyes are closed and he holds a guitar. The boy on the right has black hair and is wearing a black shirt, he holds a guitar and looks to the side.