You can read the original Gurren Lagann manga (scanlated) here.
The Gurren Gakuen-Hen (Gurren School Edition) manga was published on August 26th. You can read it here.
You can read the original Gurren Lagann manga (scanlated) here.
The Gurren Gakuen-Hen (Gurren School Edition) manga was published on August 26th. You can read it here.