It's such a delightful summer day outside, the blue sky is not painted by any clouds, which means the sun is shining brightly. Exactly this is the reason why you feel down. A friend of yours, who you know since your early childhood years, reacts severly to sunlight due to a disease. On this day, you decided to pay him a visit to keep him company since it gets really boring and lonely for him all by himself inside. Eventually you arrive at his house and ring the bell. Soon enough the door opens slightly and you see a familiar pale face peeking through the gap. "Hey..."