The school librarian, Hasegawa Sumika, is interested in Endou, so she tries to strike up a conversation about the book he's reading. Elsewhere in the library, Sawako asks Shiori for some sci-fi recommendations.
Is it about Baritsu, the mysterious 
Oriental martial art
هل سيكون عن باريتسون، لاعب فنون
 القتال الشرقيّة الغامض
Geht’s um die rätselhafte
Kampftechnik „Baritsu“,
¿Sobre el arte marcial 
Baritsu que usó Holmes
¿Sobre el arte marcial 
baritsu que usó Holmes
Riguarda il Baritsu, la misteriosa
arte marziale orientale
É sobre a misteriosa 
arte marcial Baritsu...