After that kiss with Kazuaki in the last volume, the interloper art student Fujimoto does his move and he is the cliché seme guy now and basically attacks Youichi. It's nice to see that Youichi is far enough in exploring his emotions that he has no problem really shoving him away and making it stick - I mean he's no fragile flower, anatomically.
He does promise to go to lunch with Fujimoto, though, he doesn't resent the attack, from what I can see, it helps him think about what he does WANT and what NOT.
Kazuaki, however, isn't quite sure if his increasing desire might not damage the just-now emotionally evolving Youichi and draws back, which makes Youichi doubt his impressions of their relationship and he actually acts on it! By asking his cousin for Kazuaki's cellphone number and calling him.
Kazuaki himself acknowledges that he is unable to stop reacting on his feelings towards Youichi - and the whole situation develops into the two realising they want to know more about each other and that they do share certain interests. Lovely. This then leads into the second kiss, but Youichi is emotionally not as far as Kazuaki - nor is his body, heh.
Fujimoto is used again as an outside perspective on life in the old boarding house and then we get some more Youichi pondering on why that kiss at Kazuaki's flat didn't go any further, on what Kazuaki might expect of him, on how he comes across to people - and this makes him reach out to other art students at the university. And he starts trying to communicate his feelings in words.
Then there's an interlude with Shouta's father, which leads into more explanation of the cousins' past and a very bitter confrontation (I am sort of rooting for Take/Shota, but if they don't feel find with that okay). I liked that while Shouta's father is an autocratic idiot, he actually cares for his illegitimate kid and Shota knows it. Doesn't make family any easier, but that's real life for you.
An upset Youichi and a solicitous Kazuaki finally openly address their mutual feelings. As a matter of fact Youichi confesses clearly and embarasses Kazuaki in some ways, in other ways there's one of Hidaka-sensei's excellent desire scenes, which Kazuaki would like to lead to less talk (more action ^^), but Youichi doesn't want to be shushed, now he finally has found his voice ^^. Yay Youichi!
They even make a date for a sleep-over at Kazuaki's flat, with all that implies, heh. However... Kazuaki has accepted an appointment to head an office of his company in a different city...
The mangaka has said that the original title of the manga actually translates into "Will this flower blossom?" - considering this seems to be the newest volume and it was released in 2011 and the story is clearly not over... well, I wonder. I don't mind if this should be the stop, they're both at a good point in their relationship and Take and Shouta are also moving forward with their lives.