C2201 Let's End This

"Yes." He replied in a low voice. When he looked up, he saw that the reservoir in the western suburbs was getting closer and closer, so he added, "I'm very busy, just like that." Then, he hung up the phone.

He hung up just like that?

Listening to the empty busy voice, Shu Muwan blankly grabbed the phone receiver and could not recover for a long time. According to what he said