Fairy Tale That Goes Back in Time

I have always believed that somewhere in the corner of the world, in the invisible clouds, there must be a beautiful and pure city in the sky, where there is no regret, no sadness, and no impossible love... What happened never changes, even if no one remembers it... Let that love without memories hover in our sky city... Even if fate burns away all memories, even if we never meet across the street... I think I will never forget that there was an angel-like boy who once loved me so deeply. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.