benghuai xueyuan
崩坏学园2 崩壊学園 崩坏学园 崩壞學園 崩壞學園2 崩坏学院2 ZombiegalKawaii GunsGirlSchoolDayZ GunsGirlZ Houkai_Gakuen
Chinese title: 崩坏学园2 (Benghuai Xueyuan 2) ~ The End of School
English titles: "Guns GirlZ - Mirage Cabin / Escape Ragnarok" (NA) or "Guns Girl - Honkai Gakuen / School DayZ" (SEA)
Japanese title: 崩壊学園 (Houkai Gakuen)
A Chinese smartphone game developed by Mihoyo about three cute girls trying to make their way out from zombie apocalypse; part of the Honkai series.
Originally just 崩坏学园 (Benghuai Xueyuan) ~ The End of School, known in English as Zombiegal Kawaii, before it was updated into Benghuai Xueyuan 2.
Since the two games are mostly unrelated, unless it's a collaboration, do not tag Honkai Impact 3rd when uploading posts from official sites (Bilibili, Twitter,...) or posts that have 崩坏学园2/崩壊学園/Guns GirlZ logo.