Apprentice of demigods

They save and teach you. Now you become something more to them. You was a child, when insectoids destroy your home. You the only person, who managed to escape. In moment when you was thinking that it's your end they appear. Three demigods. Solara, Constel and Luna. "Now, now, little child... No more reason to fear." They took you to their tower. Twelve years passed. You – their best apprentice and the only person, who they trust no less then they trust themselves. They even tell you their real names. No one mortal become so close to them. But... As time passed they become... Strange. All three of them look on you in different way. They give you more of their time. They even start to push each other from you as if trying to monopolize your attention. You cannot understand. For you nothing changed. But now you stuck between three forces, that start silent rivalrity for you... So, what will you do now?