Uncorrupted Worm Monster

Serendite is a Homeworld Gem (Later Crystal Gem) Who was formerly under Blue Diamond's Rule.

Entering Earth
She entered the world with Blue Diamond and Lapis Lazuli and other gems under Blue Diamond's rule. She really enjoyed the Earth. She checked on the Kindergarden in case there are new gems to meet.

War
She entered the war. She fought against the Crystal Gems. She slayed a few of them. She was really nice in combat. Until......

Corruption
She was corrupted by Rose Quartz in earth. And was left there by Blue Diamond to Dwell alone.

Getting Poofed (Bubble Buddies)
6,000 years later. She was found by Steven Universe and Connie Maheswaran and Was led around the board walk. And got tangled and poofed.

Healed
She was healed along with other corrupted gems in Rose's Fountain. And eventually Joined the Crystal Gems.