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?
- Author and artist
- Yone Kozaki
- Publisher
- Core Magazine
- Alternative names
- Kouryaku Syndrome
- 攻略シンドローム
- Love Prologue
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