Urban God of War: School Belle, Don't Do This

[No system + passionate + funny + multiple heroines] Qilin Pavilion received information that overseas umbrella companies were researching biological weapons. They sent the first team to destroy it. Due to incorrect intelligence, the biochemical virus has been leaked, and all creatures in the city have turned into zombies. The Nightmare Team is in crisis and requires support. But... They were abandoned by the organization! No support, no rescue... In a few hours, an intercontinental missile would destroy the city. Before death—— Comrades wrote their last wishes. Wang Xuan survived under the cover of the team... He came to the high school as promised!