Kouryaku Syndrome
![Kouryaku Syndrome](http://fmcdn.mfcdn.net/store/manga/14671/cover.jpg?token=bf94dd12a13483561e755daff712a7a97e62d44c&ttl=1720450800&v=1441700701)
Hina is a typical game otaku ever since one can remember. The day he falls in love, he bumps
into the worst scenery; his crush happens to be his mortal enemy's younger sister, Natsushiro Ryusei!
What shall the big brother say... Or probably request from Hina?