Yokoshima Takemaru manga
The giant Konakai Futaba and the sadistic beyond words, skirt chaser Konakai Ichino are sisters. Futaba suffers from being overgrown and bears with her sister's sadistic teasing. But what if Ichino doesn't really LOVE Futaba the same way as Futaba LOVEs her?
Shiramine Mana is sent to live with relatives in the mountain town of Sanaemachi after failing her high school entry exam. Accompanying her is her pet cat, Sasuke, who has just been revealed to be a bakeneko. But there is more to her having been sent to Sanaemachi then simply needing to study in peace and quiet.