Even though it says that the story is still ongoing, I think 3 volumes is the whole series.
Reading the raws of volume 3, pretty much everything got concluded that needed to be done. Towards the end, the main question that sums up the manga is, should Gamou go into an one-sided, unrequited friendship for the rest of his life, or chose his ex-boyfriend whom he loved when he was younger and who loves him back? With this, Amamiya eventually realizes his feelings for Gamou, and Gamou ended the relationship with his ex-boyfriend and got together with Amamiya. The secretary got with Anzai. I was kind of disappointed that the secretary's relationship with his ex-boss never got develop, but I’m happy he's with Anzai who seems to have been in an unrequited love with the secretary for a while.
This story was a bit too melodramatic for me at times, but it's understandable as it's never easy to confess to a friend that you love them as more than friends, much less doing it to a friend who's the same gender as you are. There was plenty of angst in this manga, and Amamiya played his role as the innocent bystander to the feelings of others perfectly. Although he doesn't mean to attract all of these unwanted attraction, his bright personality gives a reason why others develop feelings for him. As for Gamou, I can't consider him “weak”, but he wasn't as solid as I would have wanted him to be as a main character. His tears and indecision between picking his old love and new love was realistic, but can be irritating for me at times to read.
Anyway, this is a good manga series to read if you want the angst that comes from unrequited love. It's not particularly the best nor does it have a huge impact on me, but it's funny at times and it'll make you sympathize somewhat with Gamou's life a bit. I’ll admit, it was very predictable so, just from small signs, I was able to predict what would happen next in the story and that wasn't too exciting. The female character, Saeki, was the highlight for me, as well as Gamou's ex-boyfriend, Takimoto. I found myself rooting for Takimoto, and yet, wanting him to find someone who was capable of completely loving him also. Saeki was a jewel and she made me laugh the most. I really wished that she would have her own story, but strong females like her just aren't popular, I suppose.
So, all in all, a good read for a hour or so on a rainy day.