Pre Requisite: Understood the Moon

Go to Warrior Temple and say 'Sun'

Step 1:
You will be asked to most beautiful monster in Mythic:
Hop Rabbit : 100
Thump Rabbit : 50
Fluff Rabbit : 50

Step 2:
After that go back and report you will be asked to give:
2 Titanium Glove
2 Old Titanium Glove (Buy on Trowulan Blacksmith) Prepare @125,000 coin
4 Electra
10 Sun Grass
20 Dull White Amber
20 Gold Chestnut
20 Weather Crystal
1 Moon Mail,
1 Moon Helmet

Step 3:
Next You will be asked to kill:
200 Rabbit
200 Squirrel

Finally report back to Warrior Temple.
You will get Sun Mail, Sun Helmet, Karma and Legend.