Devereux let out a long yawn, his eyes barely able to stay open.
He wearily rubbed his temples, a wave of sleepiness washing over him so heavily that it was hard to breathe. Even though he had used the Zen Meditation Method a moment ago to recover a little, its effects were clearly limited when dealing with the exhaustion of continuous all-nighters.
"Lupin, I really can't take it anymore. I'm too tired; I need to step outside for a bit."
Chapter 290