The gang helps Sumika design some "pop" signs to draw attention to their favorite books in the library.
Fourth Volume: POP
POP :المجلد الرابع
Band 4: „Schildchen“
Cuarto libro "Recomendación"
Cuarto libro "Recomendación"
QUATRIÈME TOME : NOTES DE LECTURE
Quarto volume: I cartellini
Volume 4: Cartões