A long time ago, there was a prince who lived alone until he met a knight. The knight taught him everything, even taught him how to love others. One day, when the prince looked carefully into the knight's eyes, he saw the shadow of someone else. The knight said, my dear prince, I am willing to protect you even more than my own life, but, my dear prince, can you distinguish between liking and love? In this world, you will only have one person you love deeply. When you meet him, you will know that many feelings you think are love actually just mean like.