I know who it is!

In the hotel room, Milo Leng was looking at the screen of his mobile phone. It was a group photo. Everyone in the photo was wearing army green uniforms and had happy smiles on their faces. Only a few of my former comrades are still alive. The door opened and Xena Wei walked in. She came to sit next to Milo Leng and said, "It's done, but they suspect that I was sent by Lu Jianbin." Hearing this, Milo Leng paused what he was doing. Locking the phone screen, Milo Leng sighed sadly. After a moment...