Boarding House 3.0 Engineer Heroine 3.0 Protagonist's Boss as a Heroine 3.0 Technician Heroine 3.0 Technician Protagonist 3.0 USSR 2.5 Adult Heroine 2.0 Adult Protagonist 2.0 ADV 2.0 Ambient Sounds 2.0 Brief NVL Scenes 2.0 Co-worker Hero 2.0 Co-worker Heroine 2.0 Educational 2.0 Foreigner Hero 2.0 Foreigner Heroine 2.0 Foreigner Protagonist 2.0 Male Protagonist 2.0 Russia 2.0 Winter 2.0