Once there were Creatures fielded under the name 'Rare' were hunted for thousands of years. Hunted by humans who wants them to add onto their collection, to sell them for money or fame. Now years has passed, now 'Rare' is nothing but legends. And legends aren't real Or are they? In the Sawada Household, with a lovey Mother, a really idiotic Father, and two really hot brothers live peacefully. Until a 'baby' came in and said that the Eldest of the brother will become Vongola Decimo. But there was One thing the Baby wanted to know. "Since when there was a 'Tsunayoshi' in the Sawada Household?"