Mame-ta is a bean sesame seed only the size of a palm. He meets Akane, an elementary school girl, at the seaside and becomes a member of her family. Akane's family runs a tofu shop, with gentle parents and an energetic little sister named Yui. Mame-ta is experiencing his new life to the fullest. Sometimes he even helps out at the shop? Moreover, Mame-ta makes friends with many other bean sesame seeds at the town's bean sesame shop. The cute and gentle Cherry, Soda... and the shop's duck, Kō-chan. He gets to meet animals other than bean sesame seeds, so every day is filled with joy. It's mostly relaxed and easygoing, but sometimes his heart races!? A story that's tiny in size but overflowing with happiness is about to begin!