Artist: Kitani Sai

[COOL BRAIN (Kitani Sai)] Angel Pain 12 (Kidou Senshi Gundam SEED) [Digital]

[Cool Brain (Kitani Sai)] nenemix (Love Plus) [Digital]

[COOL BRAIN (Kitani Sai)] ANGEL PAIN Extra 7 -Ryoujoku Scatology- [Digital]

[Cool Brain (Kitani Sai)] ANGEL PAIN Extra 5 -NATSUTSUKA- [Digital]

COMIC Megastore 2011-11

[COOL BRAIN (Kitani Sai)] ANGEL PAIN 17 - Hatsuman. (Bakuman.) [Digital]

(C76) [Cool Brain (Kitani Sai)] B-ON (K-ON!)

(C74) [COOL BRAIN (Kitani Sai)] Scatolo Limited. (Hatsukoi Limited.)

COMIC Megastore H 2007-08

[Anthology] Love Chara Taizen No. 6

(C79) [COOL BRAIN (Kitani Sai)] Angel Pain Extra 11 - Majimekko de suka!? | Bookworm Scat! [English] [Chocolate]

(C79) [COOL BRAIN (Kitani Sai)] Angel Pain Extra 11 - Majimekko de suka!?

(C78) [Cool Brain (Kitani Sai)] ANGEL PAIN Extra 10 ~ Scaplus ~ (Love Plus)

(C76) [Cool Brain (Kitani Sai)] B-ON! (K-On!) [English] [Chocolate]

(C77) [Cool Brain(Kitani Sai)] Nenemix (LovePlus)

(C76) [Cool Brain (Kitani Sai)] B-ON! (K-On!)

[Kitani Sai] A-kan Ressha de Ike!! (Comic Megastore-H 2005-01) [English]

COMIC Megastore 2010-06

(C72) [Cool Brain (Kitani Sai)] ANGEL PAIN Extra 4 -Ojou-sama Scatology- [English] [desudesu]

(C73) [Cool Brain (Kitani Sai)] ANGEL PAIN Extra 5 -NATSUTSUKA-

[Kitani Sai] Shitsuraku Aroma | Lost Aroma (Himitsu Jugyou) [English] {Fated Circle}

(CR27) [Cool Brain (Kitani Sai)] ANGEL PAIN 2-The Angel of Back Scuttle- (Turn A Gundam)

COMIC Megastore 2009-08

COMIC Megastore 2009-07