Touhou Bougetsushou ~ Silent Sinner in Blue.

Synopsis

Deep within Japan's mountains lies a secluded and mysterious region isolated from the outside world by a barrier known as the "Hakurei Great Barrier." This hidden world, where creatures like yokai and gods outnumber humans, has come to be known as "Gensokyo." In this fantastical land, the comic adaptation of the Touhou Project unfolds, bringing to life the rich and mysterious world of Gensokyo.