【PC+NS+安卓直装】双生百合～要对妈妈保密哦～｜つい·ゆり ～おかあさんにはナイショだよ～

关系亲密的双胞胎姐妹——佐仓一果（さくら いちか）与佐仓双叶（さくら ふたば）。

性格认真、稍显固执的一果，与活泼亲人、天真无邪的双叶，

让家人和朋友们有时都忍不住感叹她们的感情之好。

从小到大，无论去哪里、做什么，她们总是形影不离。

即使随着成长，各自的性格与兴趣逐渐显现，她们之间的关系依旧未曾改变。

无论在家还是在学校，严谨的一果照顾着撒娇的双叶，这样的画面已成为日常。

然而，有一天，她们的母亲开始担忧她们过于亲密的关系，

告诉她们“亲密”和“依赖”是两回事，

即便是再亲近的姐妹，也无法永远在一起。

这番话，让两人的关系开始发生变化。

一果在“想看到双叶开心的笑容”这一姐姐的责任感背后，

开始挣扎于自己的欲望，以及那种“不被允许”的异常情感。

而双叶，则在“想要永远和一果在一起”这一单纯的愿望中，

对两人渐渐产生隔阂的关系感到焦虑。

超越妹妹身份的隐秘情感，使她们的关系发生动摇。

她们最终会选择怎样的方式面对这段关系？

又会迎来怎样的结局——？

Ichika and Futaba are so close it even surprises their friends and family at times. Ichika, the diligent, stubborn older twin, and Futaba, the childish, sociable younger twin, are an inseparable pair.

But there's more to their love for each other than first meets the eye.

Growing up, the two did everything together. No matter where they went, the twins were never apart. And even now that they've grown up, their personalities diverging and leading them to different hobbies, they're still as close as can be. For Ichika, the responsible big sister, looking out for childish, spoiled Futaba has become an everyday occurance, both at home and at school.

But one day, worried that the twins are growing too close, their mother chastises them, explaining that there's a difference between being supportive of each other and being codependent. Regardless of how close they are, she says, they can't stay together forever. With that admonition, the twins' relationship begins to change.

Lurking beneath Ichika's wish to see Futaba happy is a different feeling, one that torments her. A desire that cannot be fulfilled. And as their relationship changes, Futaba grows restless, seeing her wish to always be by Ichika's side drifting further and further away.

What awaits these twins, who harbor feelings stronger than mere sisterly love? What form will their relationship take, and what conclusion will their story reach?

[Summary from MangaGamer]