Chio is the eldest Korok in the Korok Forest.
The Korok Trials
Chio: Huh? You... Could it be?! You're Mr. Hero! Mr. Hero is here! The mushroom on my head suddenly sprouted today, so I knew something was up! It was a prediction that you'd come! ... I think. Us Koroks all got together and prepared some trials just for you, Mr. Hero! Although you may not need them, since you already pulled the Master Sword out and all...But these trials will help you grow even stronger than you are now! Among them is an extra-tough one designed by me, the elder of Korok Forest. Ya know, if you keep doing everything everyone asks of you without question, you're gonna get conned eventually... Anyway, where was I? Oh, yeah! The Korok Trials! Long story short - you need to visist al lthe shrines in the Korok Forest so that you can be considered a real grown-up! Trial one! In the Southwest Forest. The Trial of Second Sight! Trial two! In the northwest forest: The Lost Pilgrimage! Trial three! In the eastern forest: The Test of Wood! If you can overcome the Korok Trials, you cna overcome anything! We've also prepared some wonderful prizes for you! Now show us what you're made of. All right! Do your best!
Chio: Actually, those three trials aren't the only ones we've prepared for you. There's also the hidden Riddles of Hyrule. Have you found them yet?
Link: Not yet.
Chio: In that case, you must climb to the very top of the Great Deku Tree. The ultimate trial, which none have yet accomplished, awaits you there!
Chio: What?! You've finsihed all of the trials? *whistle* That's amazing! You're so cool! Now it's only a matter of time before you're able to pull out the Master Sword. Hurry up and show us what you've got! Ah! I know that look. You want me to give you something since you visited all the places, don't you? I guess I have no choice. I'll give you my treasured item. Trying eating a dish cooked with that Big Hearty Truffle... It'll soothe all of your aches and pains and then some! I'm not pulling your branch here! Just try it for yourself!