I loved the different story lines and the back stories they told about the deceased. There was something so sad about each story - life circumstances, dying alone, that really got to me. I do wish they had covered a more diverse socioeconomic aspect of the deaths, they all seemed to have died in squalor, which made things even more sad.

Lee Se Hoon as Cho Sang Gu was believable as someone on the spectrum, though I felt he made more eye contact and was more engaged than people with Asperger's are usually. I do wish they had tried to figure out a way for us to get to know him better. We got to know his story, which I loved, but I didn't know him any better at the end than I did at the beginning.

Ji Jin Hee as Sang Gu's father was wonderful. The character was well-written, and he played him with such love. I enjoyed their scenes together throughout the whole series. Maybe that was the only way we could get to know Sang Gu, to see his interactions with his father even at the end of the show.

Tang Jun San as Sang Gu's uncle was excellent. A man with a violent, lonely and troubled past is thrown into a family and he doesn't quite know what to do. His character arc was wonderful, and for the most part, he played him in a very understated way, letting us feel his emotions through his body language, his facial, and his eyes. That tough guy exterior with the squishy inside is so fun to watch, especially when that person has no idea what to do with those emotions.

My complaints? 1) Is there a reason to drop the F bomb so much, especially when the guy is saying "Aish". We get the idea. I know that most people don't seem to be bothered by language, but I don't like it. 2) The cage fighting boss got away - possibly for a second season? I'm hoping not, that was my least favorite storyline. 3) Abrupt open ending. Again, possibly for a second season.

Overall, this was a quiet, emotional watch for me.