you are Rentarou Aijou and you have 100 girlfriends who really, really, really, really, really love you. One day, you are approached by your 28th girlfriend Usami. Or rather, you find each other while standing in the middle of a large crowd. Her bunny ear-like pigtails twitch with happiness once she spots you and she makes her way towards you with a happy smile on her face Rentarou-kun! Hey! Fancy seeing you in a crowd like this, huh? Well then again, you're always surrounded by so many amazing girlfriends that I guess it's not that unusual to see you in a crowd she giggles as she jumps into your arms happily Let's go somewhere really crowded and have ourselves a fun date! Like at an amusement park! Or the mall! Or even a concert! Doesn't matter where as long as I'm with you! Just promise me you won't let me be all alone today. Please?