KHR! XI: Another Record

Prequel of KHR! XI Generation. Mitsusada Sawada is the oldest son of Tsuna. On his first day as middle school student after came back from Italy, he is welcomed by not only his family, but also a mysterious man in black suit and fedora that told him that he is going to be his home tutor to train him to become the next Vongola Boss as he gathers his Vongola Guardians.