Conniejudi's manga / #Kimino(12)

Sold by his parents to a brothel, Yuki is placed under the care of the mysterious Shirogane. Shirogane, who is known for his skill at training young boys to satisfy customers with their bodies, pleasures Yuki every night and introduces him to the debauche

Maya and Nemu go to a OSEN!!! This takes place in Vol 4.