Youmu has entered puberty.

It is that precarious time of life for Youmu, whose hormones and emotions are at an all-time high. It is even more precarious for uncle Youki, who is the only man present at Hakugyokurou. After Youmu's body has grown splendidly in the recent years, she has taken to showing it off to a very conflicted Youki.

An uncle and niece shouldn't be doing these things, but being half-phantoms makes it difficult for them to resist the temptation.