Yuna, who usually works as an office lady at a travel agency, was more timid than anyone else and was scared of trivial matters at work. One day, when I was in the bathroom at work, the emergency bell suddenly rang. Yuna who does not know that it is an evacuation drill and jumps out with no panties because of fear. Then, Yuna was misunderstood that she was tempted by a member who knew that she was wearing no underwear, and she was raped. And even in the first aid training that was held at a later date, the members played with Yuna's body under the name of guidance.