Never planned to watch Strong Girl Nam-soon but yourdramachingu's clip on YouTube convinced me to give this series a go. I watched Strong Woman Do Bong Soon after this series so I had no expectation of Strong Girl Nam-soon. I see a lot of negative reviews for this series before writing this review. Here are my thoughts.

What I liked:
1) Family - This is the central theme of the show, which sets this series apart from its prequel. The FL had different upbringing because she went missing when she was a child but lucky for her, her adoptive parents were kind people whom raised her well. I also liked that Hwang Geum Joo felt secure of her role as biological mother of Namsoon. That scene when she brought Namsoon's adoptive mother to meet Namsoon was really touching - I cried.
2) The romance - I enjoyed watching the relationship of Namsoon and Kang Hee Shik. They got off the wrong foot the first time they met but later they became allies and eventually lovers. Despite Namsoon's childlike mannerisms at the start of the series, she didn't act like a child or played coy when it comes to romantic relationship. I like her take charge behaviour!
3) Kang Hee Shik - I like his character and as a romantic interest, I am more team Hee Shik. This is my first time watching Ong Seung Wu's drama. I think he did well in his role.
4) Homeless friends - I like both Ji Hyun Soo and Teacher No because of their kindness towards Namsoon when she was struggling in her environment. They also had story arcs.
5) Byeon Woo-seok - His visuals are insane, his high cheekbones and height amazes me. He is very handsome with that styling.
6) Music - I like Itzy's song for this drama.

What I disliked:
1) Comedy - There are too many slapstick comedy scenes in this series. I think this drama would rate better if the writer had focused more on the origin/genetic side of superstrength power in the format of drama rather than the use of the superstrength power in the format of comedy.
2) Characterisation of main female characters - There was so much potential with the developments of side characters such as Hwang Geum Joo, Gil Joong Gan but then they became bland. A lot people were turned off by Namsoon's characteristics which is the writer's fault. Perhaps the writer wanted Namsoon to exhibit similar characteristics as Bong Soon (childlike) but I think this is the wrong move because it led stronger comparisons and harsher comments.
3) Gil Joong Gan's love story - I don't have problem watching a love story of aged individuals. However given that this series focused too much on comedy, the love story of FL's grandma did not add any value to this series. Well other than creating suspicion of that guy's intentions.
4) Hwang Geum Joo - I hate that she fat-shamed her son. It was obvious that she favoured Namsoon because Namsoon was welcomed with open arms. Good thing Kang Nam In didn't harbour any negative feelings towards his twin sister. I also disliked the way Geum Joo treated her husband and brother.
5) Ryu Shi Oh - He's a clear cut baddie from the start but there was too much screen time for his character that people romanticised him. He did not fall in love with Namsoon, he was obsessed with her powers which is a total red flag. He has a fitting ending.

Favourite scene
When Hwang Geum Joo reunited Namsoon and her adoptive mother