Sky Arcobaleno - Ouranos

Tsunayoshi (Ouranos), had been abandoned by his parents right after his birth. A couple of years later, Ieyasu, the son of Sawada Nana and Ietmitsu, is chosen as the last heir of Vongola and is sent two tutors (babies) to train(torture) him. What mysteries do these strange babies hold? Strong!Tsuna, Smart!Tsuna, No pairings - Rated T, may contain cursing