First of all I would like to say, The rating for this series makes absolutely no sense. So if you want to watch it, watch it. Don't pay attention to the rating cause it is utter garbage. This is one of my favorite series now and I am very picky and have high standard. Now, first of all the plot. It is simple amazing. It is fresh and very interesting. It is the end of the world and you end with your ex until the end, so what you gotta do? I love both Masumi and Ritsu's characters and I love that their character development throughout the series. I love how we got to see their relationship before it got messy. I love how Masumi hated Ritsu guts in the beginning and spoke out how he treated him and how he broke his trust and how Ritsu earned his trust back. I also especially love the sex scenes like OMG isn't that surprising since it is from the one that created pornographer but still, they didn't shy away at all. In fact it made me shy. The acting was amazing. Seto, Nakate and others did a splendid job. Especially Seto. I couldn't watch his previous BL drama since I can't handle cringe but boi can he act. The he expresses grief, anger and happiness just make my mouth drop. Especially this one scene where he reminisces about his past and realized how he wasted it, the expression of regret and also happiness since he have the love his life near him and he wants to enjoy the present was just perfect. The music was also so great. I would be rewatching ten thousand times until I get a second season since I can't say goodbye yet. Definitely a must watch.