"The lightning of fate told me this: The time to seriously fall in love has finally come!" - Motoka Nogisaka
"Then I guess I’ll have to work harder to become dear to you too." - Haruka Kasugano
"If it made you happy, then everything’s okay." - Haruka Kasugano
"I’m scared of being alone again. I don’t want to lose something precious again... That’s why I don’t want to fall in love." - Akira Amatsume
"Isn’t this just running away? No matter what the result is, everyone will accept you." - Haruka Kasugano
"I still think of what might have happened if I had been just a little more courageous that time." - Nao Yorihime
"I can relax the most when I’m together with you like this." - Haruka Kasugano
"This is your chance to finally spill your heart out to someone!" - Akira Amatsume
"You don’t have to rush it. Within their hearts, people take steps at their own pace. It’s alright for us to take our time, as long as everyone’s happy at the end." - Nao Yorihime
"Stand by my side; don’t leave me." - Sora Kasugano
"If you’re not choosing me, then I’ll give up. If you change your mind tomorrow morning, tell me." - Sora Kasugano
"You said that you loved me, but you never said that you love me now. Well? Do you... love me?" - Nao Yorihime
"Those memories deep within my heart haven’t faded away yet... My time stood still ever since then." - Motoka Nogisaka
"Whenever she relied on me, my heart raced... It made me want to protect her." - Haruka Kasugano
"I don’t care about that as long as I can be with you!" - Sora Kasugano
"This might be a good thing... If we can go to a world far away, alone..." - Haruka Kasugano
"Why don’t we look for it together? The path where our feelings can be kept dearest to us." - Haruka Kasugano
"I don’t care what they say. I don’t care how tough it may be. I want to make sure you’re as happy as possible." - Haruka Kasugano
"You can’t stop yourself from falling in love with someone. That’s why I want to believe they can be happy." - Nao Yorihime
"Is the feeling all that matters? If all you need to do is to follow your feelings, then there’s so much I’d like to do too!" - Kozue Kuranaga
Yosuga No Sora: In Solitude, Where We Are Least Alone is a twincest story between the siblings Haruka and Sora which began when they moved to their late grandfather’s house after the death of both their parents. When they decided to live on their own, they developed friendship and romantic feelings with other characters. However, some secrets and true feelings are yet to be discovered.