Lady Bat

Lady Bat (レディバット Redī-batto) is Mikeru's vampire-like servant and one of the four main antagonists in the anime Mermaid Melody Pichi Pichi Pitch Pure. Lady Bat calls herself "the wings of love and pleasure". She was most determined to become Michel's favorite servant. Her song hypnotizes the listeners so she could "bite" a person while they're in a trance. She is also strong enough to return the Idol-form Princesses back into Mermaid-form.

Personality
Lady Bat has a cool and calm personality, but can be easily irritated, mostly when her plans fail and has to listen the song of the mermaid princesses. She is shown to be a very confident person, and a bit egotistical at points. She is very over the top in many ways, but has shown a good ability to be serious when need be. She also talks about love a lot, and she says things like: "I give all my love to you" or "Come to take the last kiss from my lips", when she greets the mermaid princesses. She is sometimes shown to have a comical sense of humor. She tends to believe everything which is said to her.

She was also very loyal to Mikeru and she wanted to be the best of his servants. That is most likely to changed after she was absorbed by him. She does not seem to be really evil, she just followed Mikeru blindly, maybe she was afraid of him or she wanted to repay Mikeru, because he created her. She also likes to be the boss as she was leading Lanhua and Alala in the last time that she fought the mermaid princesses. However it is also possible that Mikeru made her the leader in that plan, because her behavior did not annoy Lanhua or Alala. However if that is true, Lady Bat is really the favorite servant of Mikeru.

She does not seem to like the Black Beauty Sisters as she liked Lanhua and Alala, maybe because Mikeru has given them many chances, more than hers, Lanhua's and Alala's chances and although they lose in every chance, he continues to give them more chances. That was shown when Mikeru let the Black Beauty Sisters to use first the piece of Seira's soul and Lady Bat said that it is unfair to give them more chances, as they had too many before. It is very possible that she has changed her opinion about the mermaid princesses after she was absorbed by Mikeru. She also seems to dislike Hanon a little more than the other mermaids, possibly because her first lost was because of the mermaid.