Doomsday: Check in at the Beginning, the Beautiful Teacher Asks for Admission

Before the end, she was the cool and charming head teacher on the podium, and he was the poor student she looked down upon the most. After the apocalypse, she lost her high heels and her black stockings were in tatters, so she knelt in front of his door and begged for help. And he was sitting in a fortress filled with supplies, turning a gun in his hand. "Teacher Su, who has the final say now?" Sign-in system + apocalyptic fortress + teacher-student reversal + decisive killing This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.