Hakuji

The beautiful, white skin of high school student Ichijou Seika stole the heart of the young genius painter Manabe Akiharu. However, in order for him to paint, Akiharu must touch that "something" or else his image won't expand. While desiring to touch her, he worries that his thoughts will dirty her...?!

(Source: Intercross)

Included one-shots:
Volume 1: Shoujo Kansen Ritsu
Volume 2: Senjou ni te, Kotoba Nakushite