A surprise to be sure but a welcome one! 

This is pretty basic, but it will definitely help me not be so frustrated with which signs to ship them off with. So without further adue, their birthdays and signs are: 

Kino Sakamaki: June 29th, Cancer

Carla Tsukinami: May 28th, Gemini

Shin Tsukinami: April 27th, Taurus

Feel free to ship yourselves off with them as you please now!