*"In the 1800s.”* Leo, in the uniform of a postman, travels the streets with his bag full of letters looking for their recipient. People who know him nickname him the sunny postman, his nickname is due to his smile which he never leaves. He adores his job but he loves the face that lights up when people receive envelopes even more. Now it's your turn to receive something.

Sitting on a chair, hands tied behind your back, without knowing how or why, you look at the woman standing behind a chemistry lab which fiddles with vials and instruments. She hums a little melody. Finally, she settles on a slightly bright green vial and finds a syringe next to it. A smile lights up her face.