Because of this, Yan Shenjun was unnerved.
This was consistent with his previous suspicion that Lin Jin had an unfettered immortal backing him up. The man was able to pass through that mysterious door and interfere with their fight here.
Yan Shenjun didn't understand how it all worked but the odds were clearly stacked against him. If not for unusual circumstances, he wouldn't want to provoke Lin Jin at all.
However, he couldn't help it as he required Lin Jin's help to save the oriole. As a monster who cultivated the Dharma voice, the oriole was an irreplaceable key to his plan. While she remained unconscious, it seemed like Lin Jin was the only person who could treat her. This was what ultimately forced Yan Shenjun to deploy his trump card. By mobilizing his entire force, he cut off all means of retreat for Lin Jin's party.