Classic Sunny Rain with just enough sky for the family Gift.
Constantia's Rain and right hand, general and assassin.
The Practical One. Also The Brat.
Primary Rain, Secondary Sun, a touch of Cloud and Sky, and has trained all of them into as much usefulness as they'll give him.

Actually biologically Constantino Cavallone's son with Lyra Vongola, with a little input from Jackal Spade, who was possessing the former at the time.