So this is one of the Mermaids from One Piece! Interesting choice for a bra piece (stunned at the her hair becoming a bra)?
Not really, look at this fanart, the hair and the bra are separated. I don't want to spoiler you but she is really important character in the series, just keep reading One Piece xD.
Shirahoshi is the princess of Fish-Man island. She's a giant smelt-whiting mermaid and the youngest of King Neptune's children.
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