First things first, all the characters need therapy. Second, the story seems to be rushed and the sibling problems between Hinata and Kanata seem to be "not a plot twist". As always, Yuki Furukawa did a great job to play the role of a cheater. Satoru seems to be longing for love and assurance that's why it's easy for him to pick another girl and cheat on them again. Kouta is the only one who I can trust here. Mika really needs some therapy, she undergoes a lot of trauma but that does not excuse her from being selfish. She killed an unborn child and she must pay for it. The actors did a great job, the rushed story may not give 100% justice to their acting, but the story is quite decent enough to have an 8.5 score in my rewatch value.