Nightmare Express

On the seventh night where the sky was dyed rainbow colors, there is a legend that an invitation will be sent to the most unfortunate person in the whole country. The people of the world dubbed it ‘the invitation to happiness’.
When Luludy buys the invitation from a woman named Anne Marie, she boards a train in hopes of attaining happiness. However, things take a dreadful turn when she is to get more unfortunate?!