Small breasts, big feelings hidden... The third installment of the popular lesbian series. Childhood friends Ryoko and Mika are best friends who do everything together and are second-year students at the same girls' school. However, the relationship between these two best friends undergoes a small change that goes unnoticed by those around them. At some point, Ryoko began to feel something more than friendship towards her best friend Mika, and it grows stronger day by day... This is the story of the small love between these small-breasted girls, in four parts.