He is assertive, and does not hesitate to use his magic powers to "help" out Miho.
When Pigu and Mogu go out with Miho/Lala, they transform themselves into her accessories, such as wristbands and ear rings.
The real identity of Pigu and Mogu was not really that cute.
Pigu's voice is done by Adachi Shinobu (安達忍).
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(c)Studio Pierrot/Bandai Visual/TV Osaka