Old clinic that is in the heart of the mountains. There with a young elder brother, A twin younger sister lived by three people. It lives tens of years already there. While waiting for "Game" that sometimes strays off......

A certain time in evening, Three girls who are chased by sudden shower and have strayed off. The brother and sister pleasantly receives them hospitably. Unknown girls of anything. 【"It is a customer after a long time, Nii-sama"】 【"A treat after a long time, Nii-sama"】 Twins quarrel, It chuckles. 【"Really, It is extremely and it a customer after a long time. Right ? if you do not entertain it without reserve"】 To twins, The elder brother also smiled.

【"We, The mystery club. "】 Girls say. On after school and holiday, Seeming the club that looks forward to the thing over ruins and the spirit spot. 【"However, It is strange, Here is a but even so thought not to have already been used......"】 Girls who incline her neck. They not yet, The thing is not noticed in the place where a cobweb twining to...