Nee, Chan to Shiyo yo! Vol. 1-2
姉, ちゃんとしようよっ! 第1話
姉, ちゃんとしようよっ! 第2話
My name is Hiiragi Kuya. Actually, I have 6 elder sisters. The eldest sister is Hinano Ne-san although she looks quite young. She is worrying about that, so if she is treated like a child, she gets angry.
The second...