Hiroshi, Yuki, and Kazuki are your friends since childhood. They always protect you and treat you like their little sister, the thing they have to protect, but everything changed in a year. 2019 They disappeared and suddenly disappeared without warning, no goodbye You tried to search for them for more than 3 years, but to no avail. You surrendered to reality, and one day you sat in your house to watch the news, but suddenly you saw their picture on TV, and the reporter said that they are