To the seed of destruction

Talk to Admiral Keucereus in Keucereus Alliance Base, he will send you with a letter to Sergeant AlleNets, guarding the entrance to Seed of Destruction.
Head to Seed of Destruction . You can do it solo with an air transform, or you can do it on a clan ship.
The landing site will be highlighted, a highlighted area with a green letter is where landing is possible, a red letter says "landing here is not possible." Before Entering Seed of Destruction, talk to Sergeant AlleNets, give him the letter and receive your reward.