Balala Xiao Mo Xian: Mofa Hai Ying Bao

Human girls Hai Xin and Xia Fan unexpectedly gain magical power and, with the approval of fairy Xi Ya, become young guardians of both the human world and the Magic Ocean. Their first major task is to investigate sea beasts appearing as a mysterious pollution spreads through the underwater realm.

The search brings them to Prince Hai Da and the other fairies of Hai Ying Castle, then toward an abyssal nest known as the Deep Point. There they uncover links between the corrupted beasts, a missing king and the precious Qianbei Star, while black energy threatens to poison the entire ocean. Saving it will require Hai Xin to purify more than a single enemy.