YOU SAID:
I shall become the best lobster in the party
INTO JAPANESE
私はパーティーで最高のロブスターになります
BACK INTO ENGLISH
I will be the best lobster at the party
INTO JAPANESE
私はパーティーで最高のロブスターになります
BACK INTO ENGLISH
I will be the best lobster at the party
That didn't even make that much sense in English.