Lahn's Exploring knowledge Pics [Dangpa] Lahn's Exploring knowledge (ガーディアンテイルズ) [英語]

(Shuuki Reitaisai 2) [Blossom Sphere (Sakurayu Haru)] knowledge No life. (Touhou Project)

(C80) [Monaka Udon (Monikano)] Capture Trap ~Patchouli Knowledge~ (Touhou Project)

(SC62) [Haitokukan (Haitokukan)] Touhou Jikan 6 Patchouli Knowledge (Touhou Project) [English] [naxusnl]

(C85) [Fukutsuu Okosu (Kaiou)] Saimin Rape Patchouli Knowledge (Touhou Project) [English] [Gorem]

(Reitaisai 15) [Kasou Genjitsu (Hasekura Noise)] Kyousei Ninkatsu Patchouli Knowledge (Touhou Project)

(C89) [CausCiant (Yamaiso)] NO! NO! KNOWLEDGE! (Touhou Project)

(Reitaisai 9) [TLE (Fujiyama Takashi)] Aru Shingetsu no Yoru, Patchouli Knowledge wa Jukkaishita. (Touhou Project)

(SC62) [Haitokukan (Haitokukan)] Touhou Jikan 6 Patchouli Knowledge (Touhou Project) [Chinese] [Uchin个人汉化]

(C85) [Fukutsuu Okosu (Kaiou)] Saimin Rape Patchouli Knowledge (Touhou Project)

(C84) [Wish +Kibou no Tsubasa+ (Sakurano Ru)] Only for you -Patchouli Knowledge- (Touhou Project)