The Global Server for Guns GirlZ was closed on October 11th 2021, while the JP and CN servers remain active. Guns GirlZ, also known as Houkai Gakuen 2, is a 2D side-scrolling shooter game developed by miHoYo. It follows Kiana Kaslana's adventure through her three different incarnations, along with her companions such as Raiden Mei, Bronya Zaychik, and Houraiji Kyuushou, in a fight to defeat a world-destroying power known as the Honkai.