Gin no Kerberos

Kerberos in the Silver Rain (銀のケルベロス, Gin no Keruberosu) is a manga series written by Rira Aikawa and illustrated by Berry Star.

Plot
In the near future, Japanese government successfully developed a new energy "Ψ" called psi that have been laid under its land from ancient time. Sakuya, Goht and Leon who are special forces "Kerberos" who dedicate themselves to protect the secret of Ψ from various powers. The strongest soldier is a beautiful girl, Sakuya. She has a trauma but stands with team members, Goht and Leon, who admit her strength and weakness.