In short, Shuu wants to make a baby with Haruka but Haruka refuses initially, going as far as mocking Shuu for not able to get erection. Shuu retorts by saying even Haruka can't get a partner even though she went to arranged meeting for marriage (omiai) multiple times and saying she always acted like that, accept request no matter how bad it is, including Shuu's request for netorase. Haruka's pissed off saying even though 3 years have passed, why Shuu come for her if he just wants to mock her. Shuu asks whether Haruka also did it with other men (arranged partner), she answers "What do you think?" while rubbing her wet pussy and lick her finger (Woohoo just like Marina).
Noticing Shuu's erection, she gives him blowjob and mocking him. She confessed that she likes Shuu's face when he's suffered. He replies by saying he loves her. She refers that time when Shuu said suffering is proof that he loves her. He bangs her.
And then there is no indication how many times has passed but we see Shuu go back from his work, arrives in his apartment complex. After opening the front door, Shuu sees pair of men's shoes and his heart starts pounding.
The author seems want to convey that Shuu and Haruka continue netorase lifestyle but it could be just guest or Haruka's father. I think the manga can get 1 additional chapter with all the good stuff, because for last chapter it lacks great H-scene. All in all, great manga, but last couple chapters are just so-so.