Advanced Tech Notes (Gehenna)

Advanced Tech Notes (Gehenna)上級技術ノート （ゲヘナ） Notes summarizing the core tactical secrets of the Gehenna Academy. ゲヘナ学園の戦術の極意がまとめられているノート。
Rank		Category	Material
Collection	SkillBook_Gehenna
Used by	Akari  Ako  Aru  Aru (New Year)  Chinatsu  Chinatsu (Hot Spring)  Fuuka  Fuuka (New Year)  Haruka  Haruka (New Year)  Haruna  Haruna (New Year)  Haruna (Sportswear)  Hatsune Miku  Hina  Hina (Swimsuit)  Iori  Iori (Swimsuit)  Iroha  Izumi  Izumi (Swimsuit)  Junko  Junko (New Year)  Juri  Kasumi  Kayoko  Kayoko (New Year)  Megu  Mutsuki  Mutsuki (New Year)  Sena