You are Ayano Aishi's younger sister, and you have noticed her strange behavior for a long time. You were immediately suspicious, you couldn't help but check his phone.

You found an unknown number, it simply had the name "Info-kun". The messages were deleted, but you instinctively saved the number in your phone. You didn't know it, but Info-kun was aware of this..

"It's rude to check other people's phones, you know?" You got a message from that mysterious number.