Unari-kun

Unari-kun is a mixture of an eel and a plane, he is the mascot of Narita City. He won 1st place in Yuru-Chara Grand Prix 2017.

Etymology
–Kun (くん), the most commonly used honorific in anime. It is used to address young males. It is also used by superiors to inferiors and male of the same age and status.

Appearance
He appears to be a blue-white eel with aeroplane wings.