@Aoixneko
I already read through all the chapters. Still didn't quite like Shigeharu but at least he admitted that he was acting mean towards Hirose. It's only because Hirose is so kind and soft-hearted that he didn't retaliate against Shigeharu for his behavior and later felt sympathetic towards him because of his sad backstory. In all honesty, it boggles my mind why Shigeharu tricked Hirose into thinking he's cheating with his wife when in reality she was in on it. I get that he's annoyed that Hirose doesn't remember him from long ago but if you really like the guy, you wouldn't harass him like he did in the beginning. You'd treasure him. Show him all your good sides.
Even towards the end, when Shigeharu was apologizing towards Hirose, I didn't like the framing of the way it was done. The author literally had Hirose kneeling on the ground while Shigeharu was standing up apologizing. There's just something so jarring when seeing that play out when the dichotomies do not match. The author should have had Hirose sitting on the bed with Shigeharu kneeling in front of him holding his hands or something to apologize. That would have been so much better.
Regardless, I won't give this a low rating. It's usually my policy not to give ratings to things I didn't quite enjoy and let others have their fun with things they like.