The path of boobs that women must master to become adults Hana, a young apprentice, visits the tea room where the breast master is waiting. The master's hands knead Hana's soft and beautiful breasts and tease her nipples. After being taught secret techniques such as the paizuri, Hana entertains her guests with the ultimate breast etiquette. With her huge breasts bouncing, she is penetrated from behind while riding him in cowgirl position... and Hana grows into an assistant master.