Toki

Chapter 26: Necklace 1
Vol.4 Chapter 25: Challenging
Chapter 27: Necklace 2
Vol.4 Chapter 25: Challenging
Chapter 27: Necklace 2
A Saki spin-off series. It follows the characters Toki Onjouji, Ryuuka Shimizudani and other girls from Osaka during their elementary and middle school years.