Stay on the game for a certain period of time to receive these bonus rewards. They do not have to be in one sitting.

Unlockable	How to Unlock
Deity's Blessing	Stay online for 5 minutes.
Five Extra Bag Slots	Stay online for 50 minutes.
Immortal Koala Pet Egg	Stay online for 15 minutes.
Magnificent Cape	Stay online for 30 minutes.