Perfect girl × Mad rule = No turning back from school life!? 

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.