This is Kirimi-chan.
Kirimi-chan is one of the latest mascot characters from Sanrio, the company behind such famous characters as Hello Kitty, My Melody, and Gudetama, the lazy egg. She is an anthropomorphic salmon cutlet and is available on pretty much any kind of merchandise you could possibly want to own an anthropomorphic salmon cutlet on.
But she isn't alone! She has all kinds of anthropomorphic seafood friends! She also has her own theme song!
Everyone, sing along~!Ki ri mi, Kirimi! Anata no Kirimi~
And remember Kirimi-chan's catchphrase - "Please eat me deliciously!"