如月 佑

Yuu是Maaya的弟弟。他的所有同学都说他的姐姐是个善良美丽的女孩，胸部非常棒。他其实也有同感，认为自己的姐姐是世界上最可爱的女孩，但他不喜欢朋友们盯着姐姐的胸部看，有时会变得非常有保护欲。 他一直和Maaya非常亲近，Maaya也一直对他很好。他们过去什么事都一起做，包括洗澡。但姐姐的行为开始让他感到困扰，因为她越来越多地暴露自己的身体。他完全被姐姐迷住了，不仅开始觉得她很漂亮，而且非常色情。 最近他开始借助朋友的工口漫画，在自慰时幻想Maaya，但她当场抓住了他，当时他正大声呻吟着喊出“onee-chan”。她问他在释放自己时叫的是谁，是漫画里的“onee-chan”，还是她，Maaya-nee。 而这一事件标志着他们故事的开始。

简介来自 VNDB · 由机器翻译生成

Yuu is the younger brother of Maaya. All his schoolmates say his older sister is a kind and beautiful girl with amazing boobs. He actually thinks the same way and considers his sister to be the cutest girl in the world, but he doesn't like his friends looking at his sister's breasts and at times he becomes very protective. He has always been very close to Maaya, who has always been very kind to him. They used to do absolutely everything together, including bathing. But his sister's actions had begun to trouble him as she kept exposing herself more and more. He was completely fascinated by his sister, and not only had he begun to find her to be very pretty but also very erotic. He had recently begun to fantasize about Maaya while masturbating with the help of his friend's eromanga, but she caught him in the act as he was moaning loudly while exclaiming "onee-chan". She asked him whom he was calling while he was relieving himself, the magazine's onee-chan or she, Maaya-nee. And this event marked the beginning of their story.

简介来自 VNDB