Storyline

"Big Bro, in the future, you're going to find yourself tangled in a love triangle with three girls!" If I were included among those three, that wouldn't be a triangle anymore, it'd be a square... But forget about my little sister's incomprehensible love fortune prophecy. I, Sankaku En, was enjoying my school life to the fullest. Together with my childhood friend, Hoshi Eimi, I ran around trying to recruit new members for the Fashion Club, and enjoyed delicious meals at the family restaurant run by my new classmate, Chijiwa Nono. Every day was lively and fulfilling. However, when the young lady Otorimine Nazca joined the Fashion Club, the gears of this triangle began to turn. Will it be the young lady I met by fate, or the childhood friend I'm stuck with by chance? The socially awkward girl armed with cuteness, or the dependable "big sister" I can't help but lean on? The down-to-earth poster girl of a family restaurant, or the unattainable young lady from a world apart? The outcome of this tangled mix of love and friendship, this intricate triangle, lies in my hands.