在面向对象编程中，类是对象的蓝图，封装了数据和行为。路星辞×段嘉衍终身标记

　　On the battlefield, a creature called “Oop” that looks like a head with soldier’s helmet, awakes by coincidence. It follows the guide, wanders in the abandoned city. At the end, oop regains its memory and find out about itself.