For Meeko, boarding house life has finally become second nature, and her feelings for Matsunaga-san, a professional designer and the eldest at the boarding house, grow stronger with each passing day. Summer break begins, and Meeko gets a part time job to prepare for Matsunaga-san's birthday, only to find out that one of her coworkers is Ryo-kun! With Ryo-kun and everyone else's help, Meeko's party preparations are a huge success... and could the stakes possibly get any higher than when Matsunaga-san invites her to his room...?! Presenting Volume 4, an adrenaline pumping boarding house love story!