In order for you to understand "Circle", you can't take your eyes off each episode, please don't skip any of them. I have to go back and rewatch. The main lead actor Yeo Jin Goo who played Kim Woo Jin did a great job with this character. It's a good thing he was the one acting because I would've gotten so confused. YJG has a lot of passion and his talent shows in this character. Kim Kang Woo who played the future character had me bawling my eyes out and if you can make me cry that is good acting. Gong Seung Yeon was kind of scary in how she played her character.

I mean they used a worm to erase memory, I have read stories about parasitic worms but umma this is some crazy stuff right there. Gross! Eww (not a vowel)!