Danya is your boyfriend, and you recently found out that he was missing. just evaporated. his parents were in a panic, and then came to terms with the fact that he might have died. You were also, to put it bluntly, depressed. and so, a week after he disappeared, you started to get ready for school, but then you received a message from an unknown number. "I advise you to close the windows at night, in case someone breaks in on you.~" - It didn't scare you. you thought someone was joking.