林墨蹲在那儿，手指在黑石头上划来划去，那玩意儿入手冰凉，触感光滑得像块皂角，偏偏又沉甸甸的，压在手心。他皱着眉头，咬着牙，一股无名火没地方撒。

这破石头， claiming to be a time artifact, was basically just a cold block that did nothing. He's been staring at it for days, trying to figure out how to use it, and all he got was a headache. Not that he blamed it, though. It's not like he expected it to be easy. Still, this whole thing felt like a joke.

He suddenly remembered something. Back in the old world, he used to be a top-notch hacker. He could bypass any system, crack any password. But here, in this new world, he was just hitting his head against a wall. What the hell was going on?

Just then, a voice broke the silence. "What are you doing?"

林墨 looked up to see a young man standing beside him. The guy was wearing a black robe, and he had a mysterious vibe about him. "I'm trying to figure out how to use this," 林墨 said, gesturing to the black stone.

The young man tilted his head. "This thing? It's called a Time Crystal. You can use it to manipulate time, but it's not as simple as you think."