I actually really liked the ending! It was more realistic, and even during the manhwa it seemed like Saeeun and Jiwoong weren't that close. It never emphasized their present love life that much or showed how happy they were together. The characters were also great. I loved the emotions that they felt, and how they were portrayed in a very human light. Overall, it was probably one of my favorite manhwa, and it was really touching despite the amount of erotica around it. The art style was amazing, the story equally so. Fingers crossed that the author comes out with another work!
Plot twist: This is secretly advertising for Twitter