Touhou Bougetsushou ~ Silent Sinner in Blue

A series of side stories that complement Touhou Bougetsushou ~ Silent Sinner in Blue. (Source: Touhouwiki)

This manga takes place in Gensokyou, the setting for most of the Touhou games. Touhou games related. It's story of 3 fairies and their daily tricking to visitor of Hakurei Shrine, getting revenged, and so on.

A manga based on the Touhou series of games, written by its creator. Mostly focuses on a trio of fairies and the mischief they get up to, as well as the main characters of the games. The first five chapters have the English subtitle Eastern and Little Nature Deity and were drawn by Matsukura Nemu. Nemu then had to leave the project for health reasons, and it continued for 25 more chapters as Strange and Bright Nature Deity, drawn by Hirasaka Makoto. *Note: chapter count includes 3 extra chapters.*

It'a autumn in Gensokyo. Hieda no Akyu is about to finish the next chronicle of Gensokyo when she is visited by several inhabitants of the land.

A cute and funny set of stories about two youkai rabbit girls, Reisen Udongein Inaba, Tewi Inaba, and an Exiled Lunar Princess, Kaguya Houraisan along with Reisen's Master, Erin Yagokoto, and their everyday life in Eientei.

Continuation of Touhou Sangetsusei ~ Strange and Bright Nature Deity.

Continuing in the Touhou series, this one follows the footsteps of Silent Sinner in Blue, Inaba of the Moon & Inaba of the Earth, and the Sangetsusei trilogy. This time, Marisa comes across a mysterious hermit outside the Human Village. However, as she tells Reimu about her, the hermit is seen sneaking around the Hakurei Shrine. She's Kasen Ibaraki, a strange, bandaged ascetic of unknown nature and ability who's far more aware of them and Gensoukyou than either realizes. *Note: Chapter count includes 10 extra chapters an 1 epilogue chapter.*