I was just hoping for a quiet school life... But then I got targeted by a cheerful and mysterious beauty! She leads the eccentric club known as the “Happy Life Research Society” and is a legendary figure at school—Rina Shinonome. Beautiful, smart, athletic... yet her personality is so outrageous, it’s overwhelming!? After being called “the chosen one,” I was dragged into the club against my will. Day after day, I found myself caught up in her whirlwind pace. But behind her constant smile... she seems to be hiding a secret no one knows—? Includes Japanese voice acting.