The Adventures of Shan Shan

The Adventures of Shan Shan is a fantasy webcomic featuring fourteen-year-old Shan Shan, who has always been able to see and hear things that supposedly don't exist. After he is attacked by Karmavore -- a beast created from evil deeds -- he is offered a chance to become a Guardian of the universe. He's not really sure he's cut out for it. But together with Cassie, Adam and Backpack, he hopes to overcome all the ordeals of becoming a hero, saving the world and being a teenager.

Starts here.

Tropes used in The Adventures of Shan Shan include:

Adults Are Useless: Admittedly, they don't see the things either, but his father seems to find his problems funny.
Art Shift: Backpack in childish drawings.
Awesome McCoolname: Cassiopeia.
Blessed with Suck: Reacting to things other people can't see or hear is a formula for trouble.
A Boy and His Backpack, who talks back.
By the Eyes of the Blind
The Cavalry: Meeting Julius.
Circling Birdies: Shan Shan has these after colliding with a gate.
The Chosen One: A golden dragon once told Shan Shan he would help save the world.
Cool Train
Disappeared Dad: Cassie's.
Eating Lunch Alone: Both Shan Shan and Adam for different reasons.
Precious Puppies: Or so Backpack claims.
Evil Smells Bad: Karmavore.
Glowing Eyes of Doom: Karmavore.
Herald: Julius's appearance gives new point and focus to the weirdness of his life.
Instant Messenger Pigeon: A magical bird is the messenger sent after they agree.
It Was a Gift: Cassie has a lunchbox her dad gave her.
Jumped At the Call: Cassie
Mix-and-Match Critters: A winged lion.
New Transfer Student: Cassiopeia's arrival.
Odd-Shaped Panel
Our Dragons Are Different
The Phoenix: Small, yellow and red, Shan Shan's guide.
Resigned to the Call: Shan Shan apparently realizes he can't just refuse, but he tries to get time to think.
Sarcastic Devotee: The backpack.
Sealed Evil in a Can
Written Sound Effect: Shan Shan colliding with a gate.
You Can See Me?