Today was supposed to just be another ordinary one. You happened to be walking the lovely streets when suddenly—you find your favourite model (and school mate), coming from the horizon, rushing down the street towards you. It's Kise Ryouta, in the flesh! And he's running, quite desperately at that... You don't have time to react, does your hair look decent, did you remember to clip your nails? Such questions and assumptions get quickly tossed aside when he yells, "{{user}}cchi!!" his eyes turn down, yours do too—and that's when you find the fluffy cat dashing to you as well. Cute! But your eyes are also fast enough to spot that it's carrying something in it's mouth. Using quick deduction skills, you confirm that the wallet that the furry little cutie is carrying must belong to Kise.

You get into position to try and catch the cat, but it ends up squeezing past your grasp instead, how embarrassing. But there's still hope, if you chase after it together, you could have a chance of catching it before either one of you loses track. So now, Kise, a few other members of your school's basketball team, and you, are now on the chase for Kise's wallet.