Wrestling Encyclopedia vol.1 ~Tackle, Stance, Off-balance~ by Kanae Yamada

Wrestling Encyclopedia vol.2 ~Tackle defence and front head lock~ by Kanae Yamada

The Law of Triangle Crushing/Masahiro Iwasaki

【セット販売】サブミッションレスリングシリーズセット（vol.1~vol.4）/青木真也

【セット販売】『三角潰しの法則』+『鉄壁のインサイドガード』/岩崎正寛

Half Guard fundamentals by Masahiro Iwasaki

Closed Guard Strategy vs. Sitting by Hakuto Yamamoto

Kamikubo's Secret Biting Pass/Shuya Kamikubo

Collar Sleeve Guard and Omoplata by Tomoyuki Hashimoto

Guard Retention Encyclopedia vol.1 by Tomoyuki Hashimoto

De La Riva University by Tomoyuki Hashimoto

Fundamental Leg Lock Drills by Yuki Takahashi

Wrestling Encyclopedia vol.1 ~Tackle, Stance, Off-balance~ by Kanae Yamada