He couldn't say that there was no other exit inside the Door of a Thousand Caves, but if there was even a slim chance they'd use this one, he wouldn't let it go.
Judging by the fact that the Sunshine Sect disciples came together, they came prepared. But by the looks of it, they had obviously not expected to be lucky enough to actually find the key to the Door of a Thousand Caves.
"Sometimes, one can't enjoy all opportunities despite all the luck. It seems I can only snatch it from others.
"This way might be a bit immoral, but I can only do this to become the strongest.
"However, you guys won't lose out. You can count yourselves lucky to be able to be pave the way for the strongest. In the future, when I become the strongest expert, I will publish a book specifically to write down the path of my growth, which will be handed down for eternity. You guys will be a part of history that will be remembered by the world."