an Entity references as follows:
SG/ZH School Girl/Zombie Hunter (SG/ZH スクールガール/ゾンビハンター) is a shooting video game. The game was released in Japan on 12 January 2017 It has been described as a "Zombie Panic shooting Action" ("ゾンビパニック・シューティングアクション") title and it is considered to be within the Onechanbara videogames series: the setting is, in fact, the same universe. However, unlike the Onechanbara's games, the game is set in a private institute attacked by zombies while five young girl students have to fight for their survival.