In that case, perhaps I should be Daajirin?

Daajirin Written with the kanji for rice field and ass

It quite lacks elegance and refinement, though...

Assam must surely be Assamu!

Assamu Written with the kanji for "sub-" and cold weather

Uwaaah...

Am I some sort of arctic climate!?

And Peko is Orenji Peko!

Orenji Peko Written as "Hunger for mandarins"

Why "hunger"!? As in my stomach going "peko"!? "Pekopeko" is the onomatopoeia for someone being hungry.

There is a difference between oranges and mandarins, as well...

Nishi-san is rather poor when it comes to western writing, therefore we should adopt Japanese replacements.

Soul Names

That seems to be the case with Nishi-san.

Do you suppose we should change our soul names as well?