There has been a clear on Arkrec showing that Irene can solo IC-9, but the video was gone, so I wanted to get a video proof. Not only did we get video proof, but we got 2 videos proof for Irene solo. Thank you to @fersangu for letting me upload their clear on my channel, go check him out.
I'm not going to explain how I did my clear or how Fersangu did their clear, it's mainly just drop Irene, use S3 on boss while spamming the cars.
BlueX currently has 179,407 views spread across 140 videos for Arknights. The game makes up 12 hours of published video on his channel, or 92.39% of the total watchable video for Arknights on BlueX's YouTube channel.