The Sea as a Legacy

 is an Achievement.

Objective

 * Complete the following quests
 * Electric Water
 * Topo the Li'l Robo
 * Crystal Trap
 * His Name is Nobody
 * The Key to the Mystery
 * A Door to the Past

Rewards

 * 10 Achievement Points
 * Level-Based XP (Maximum: 5,250,000)
 * 43,980 Kamas