Coffret is very honest and is never afraid to speak what is on his mind, which sometimes makes him look rude. His personality is very much like that of Erika, so they rarely argue.
- His name is French for "casket", or jewelery box. As a result, he is the only mascot in Heartcatch Pretty Cure! to not be named after a perfume-related item.
- For the Pretty Cure All Stars DX3 Movie Character Polls held by Toei Animation, Coffret appeared in the following rankings:
- 7th in "The Fairy you wish to have as a partner most."
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