I heard from someone who read that he is dead, though not 100% sure
I just watched Ep 1 and 2. Though he appeared dead (the detective's confirmation and even cremated), other Code holders (Purple and Yellow) might have helped him faking his death.
I didn't count how many dramas I watched, in short: a lot. Specially because for me 2023 was a year when I started…
I love short-length series/mini-dramas, too, but watching them while they're currently airing is a pain to wait for because of the short duration. Since I also watched Kdramas, I noticed the ones shorter than the usual 16 episode counts (8, 10, or 12) are way better, to-the-point plots, with no filler characters/subplots.
Maybe the dramas that won't make you fall asleep are thriller or action genres, also wuxia and xuanhuan.
I think their eyes are different. Park Seo Joon can make his eyes round and big especially when he looks confused, lol. Are you watching Li Zhuo Yang's currently airing drama All of Her? It's more interesting than this.
Oh my gosh, this is a super old drama, filmed in 2017! I'm only aware of it cos I collected Liu Yu Ning's OST songs and he sang the drama OST! https://kisskh.at/list/10dJp8a1
K-Drama 
6 
13 
1 
1 
3 
1 
1 
1 
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2 
Maybe the dramas that won't make you fall asleep are thriller or action genres, also wuxia and xuanhuan.
https://www.youtube.com/watch?v=ZhfAZE-lyFM
If that's the one, according to the video title, the singer is Wang Xiao Kun or Essay Wang (王嘯坤)
https://kisskh.at/people/27013-essay-wang
https://kisskh.at/list/10dJp8a1