StarCraft: Ghost Academy Series by David Gerrold, Fernando Heinz Furukawa, Keith R.A. DeCandido

Ghost Academy chronicles the early years of six StarCraft characters all destined for greatness - and tragedy. Five teenaged fourth-class Terrans (Nova, Tosh, Aal, Kath, and Lio) are rough-around-the-edges Ghost cadets in training - and they are forced to deal with everyday teen issues such as crushes, physical and emotional pain, addiction to drugs and their own budding telepathic abilities.

Starcraft Ghost Academy Book 2 Manga

Five teenaged fourth-class Terrans (Nova, Tosh, Aal, Kath, and Lio) are rough-around-the-edges Ghost cadets in training - and they are forced to deal with everyday teen issues such as crushes, physical and emotional pain, addiction to drugs, and their own budding telepathic abilities. This title chronicles the early years of these characters.