Ikuma's sister Emiko finally gives birth to her long-awaited first baby! It goes without saying that Kaoruko-san and the other sisters are going gaga over the newest addition to the family, but will spending time with this bundle of joy change how Ikuma and Sumika feel?! Maybe it's time to think about a future not just for two but three? Check out this story of two newlyweds taking their relationship to the next level!