Stopping a military vehicle

"I'm worried," Gu jinghang frowned.

Song ran looked up at him. worried? "  So you want to stay? And then? Where do you live? Say what? Don't think too much. Even if someone really heard what we said, I have a plan. You should go back quickly. If you are late, you won't be able to catch the last bus."

Gu jinghang was reluctantly sent to the main entrance by her and instructed, " "Call me if there's anything,"

"There's no phone in the school."

"Then, let's call him at home."

Song ran shrugged. alright, I got it, team leader Gu. You should go back to the Research Institute now.  

In the Twilight, Gu jinghang looked back three times for every step he took. In the end, he still left worriedly.

Song ran stuffed her hands into the pockets of her coat and walked back with her neck hunched. As she walked, she thought to herself,'who could it be?'