The Dead Return to School: the Dragon's Back Is Not Broken

Xuan Lin Squadron, the most secret sharp blade in the Dragon Kingdom. In an overseas top-secret mission, the route, password, and code name were leaked at the same time. Seven team members died in the battle, and the official battle report read "all killed in action." Only captain Sun Aolong crawled back from the pile of dead. He did not return to the team. Because he knew that the person who could sell Xuan Scale was not on the battlefield, but in the chain of command. In order to avoid the next purge, Sun Aolong erased his traces, returned to Longhai University with a blackened team emblem and an encrypted residual machine, and became an ordinary transfer student. The ordinary girl in the library, the wealthy daughter who sees through the rules, the reporter who pursues the truth, the cold and proud military heir, the gentle but dangerous psychological assistant... One by one, seemingly unrelated people drag him back to the old case. Campus is not a sanctuary. There are the old passwords of Blue Crow Valley, the fragments left by comrades in arms, the shadow of the White Tower extending in, and a death file that has been maintained over and over again. The enemy thought that the dragon's spine was broken and Xuan Lin was dead. Sun Aolong only hid the knife deeper. He said: "The dragon's spine is not broken, and the mountains and rivers are proof."