Even though I'm the main character, everyone is calling me "Potato".

Oh... Bucky is a "Jagaimo"...! "Potato". The following is a joke that is untranslatable otherwise.

Bucky is a "Jagaimo" desu.

"Jaigamo"?

No-no, "Jagaimo".

Oh! "Jaimon"?

Bucky... "Jagai...mo"

Jaga...Jaiga...Ja...?

......OH! Jamaica!

You are Fubuki,

...the destroyer from Jamaica, right?

You're mistaken.