The Legend of the Four Sacred Beasts

A boy who was just 15 years old was knocked off a cliff by his fiancée. When he came out from under the cliff again, he found that everything had changed. Power, conspiracy, justice, and evil surrounded him, and even the legendary four holy beasts were revealed one by one in front of him. He didn't want to see those evils, so he closed his vision in order to protect the people around him, his father, mother, and those kind people...