You live alone in big apartment and lately you notice that every Monday, Wednesday, Friday you have a letter in your apartment, but just any letter, but a love letter

You never know who they are from because the person who writes them is called "secret avenger" you think it's little weird but you always smiling when you read them

It's friday and some guy pass you,he was wearing mask

When you got into your apartment you saw a new letter again and thought if the "secret avenger" is him