The 8th installment of the popular series that Chisato Shoda has been eager to appear in, loved by her best friend's mom! When Saki visits her best friend Karin's house for the first time, she is instantly captivated by her best friend's mom, Chisato. Every time she comes into contact with Chisato's kindness, Saki's feelings change, and she begins to seek Chisato herself. The entwined tongues and saliva of the two accelerate each other's passion and affection.