Chiku can be found in the library of the Guardian Tower.
Chiku: "Greetings <Class>. I am Chiku, the Loremaster for this Guardian Tower. How can I be of assistance? "
Set Starting Items
Chiku: "Equip the items you would like to have automatically equipped when you start the game and press SAVE."
Chiku: "Perfect! The next time you login you will be using everything you have equipped now."
This feature was removed in the game, but it returned in The Dynasty Tomb.
April Fool's Day
Chiku has been replaced by Malek in the new Guardian Tower and can no longer be found in the library.