Who did computer expert Lu die with: did he end up at the expense?

Master Lu is a computer expert. His initial dream was to be China's "Jobs". He doesn't want to join the army, let alone be a submarine soldier. He is an otaku who doesn't care about anything, but he became a submarine soldier by chance.

In my later military career, I met Jin Qing, a thoughtful psychological instructor, and Shang Tang, a highly effective devil instructor.

Under their cultivation and edification, Lu gradually found his sacred belief that he was willing to devote his life to it, and they also forged a profound friendship that they could not give up. With the help and guidance of Jin Ziqing, Lu finally opened his heart, and the two gradually developed ambiguous feelings. Luhe is a teacher and a student, but they are about the same age, and they are both soldiers. They are all interested in submarines. They are like-minded fellow travelers, so they finally came together with Jin Ziqing.