He is my bat boy character Kuraresu with light colored background, and I draw this art in 2014. sometimes I want to draw the simple art and simple background, and the rough paper is far easier to color, I remember I relax and draw this art. in usual I use the different color on character and background, but in this art I use the red and yellow, it's the same of his wing color, now I feel this color pairing on this art have the light mood.