Fundraising Plugin Japanese Yen Problem.

Hello! how r u?

im using Fundraising Plugin for crowdfunding website on wordpress.

I found one thing.

im using plugin as Japanese Yen.
and i dont need '' Money Price of place after the decimal point''

I wanna written in like 30000 yen.
but now, my plugin wokring like 30000.00 yen.

its not comfortable for japanese user i guess.
they will be misunderstand about total price.

i think its different culture between USD and JPY.
what should i do for fix this? please give me advice teacher!

yuki