the couple sees Yuri leaving from a love hotel (hinting at her turning into the thing she shittalked all the series, a karmic comeuppance), Souta starts to show signs of ptsd, Haru forces him to explain wtf happens with him, as she knows he's easy to read, they talk things out and have lewd and raunchy sex after that (with Souta overdoing it bc he lets out his inner pain while doing it). Fumi spots them leaving from the same love hotel, Souta doesn't know what to say, but his mom only wants to ask for his forgiveness. He still doesn't know what to say or do bc he still has some grips due to that incident, but Haru tells him to accept her apologies, as she sees Fumi's really ashamed of how badly she raised Souta and reminds him he is the cause she could talk things with her family. Souta accepts, and tells her his grandparents were actually worried sick of her.