Flowers and Bunny

Mr. Aizawa is a regular of the delivery company, but he's a shy shut-in who always wears a rabbit head. Why on earth does he wear that? Is he a pervert? Even though he gets daily packages, it's terrifying because I never see his face and he never says anything. But one day, he grabs my arm (still wearing the rabbit head) and says, "S-See you tomorrow..." If you say that while looking down... Isn't that just going to make my heart race? Note: Includes the one-shots "Ano Egao wo Mou Ichido" and "Bokura no Saidai Kouyakusuu".