Action Kaiki! Drill Otoko no Kyoufu takes place in a gloomy mansion. Three sisters accidentally got there. They were hiding from the rain and did not expect that mortal danger awaited them in the house. The user will have to control one of the girls. Each of them has her own characteristics. Ayako is miniature and fragile. Because of her physique, she is able to hide in the most inaccessible places. Hazuki is the bravest and strongest. She will not be afraid to confront the enemy. Yukino suffers from problems associated with memory. She cannot remember the location of the rooms, the direction of the corridors. Once indoors, they begin to explore and inspect the location. Then their pursuer appears. It is a monster nicknamed the Driller. The thing is that he has drills and blades instead of hands. It is better not to come across him, because the meeting does not bode well.

The player in Kaiki! Drill Otoko no Kyoufu has to explore the rooms and rooms of an ancient building. At the same time, you should immediately hide from the pursuer. To do this, you need to look for and prepare shelters. Also, along the way, you should solve problems and puzzles. By comparing several objects, the doors to the next room open. If you get caught by the villain, you should act decisively. He takes off the victim's clothes. To remain naked means to lose. Therefore, you need to collect clothes from the rooms, throw them away from you. This will distract the monster. In the process of passing, you can meet other inhabitants of the gloomy place. This leads to a change in the plot, to different endings.