I feel like Noboru always wanted this and that's why he got pissed to know that niichan didn't want to follow him since he wouldn't be close to his little brother as much. And I feel like his grin meant " i got what you didn't want me to get" i don't think Noburo saw niichan as a lover though especially after his response on the last page about not ever thinking that way about a man. What do you think?
I haven't thought of it like that. You do make very good points. Now I feel I should re-read the manga from this perspective and see how I feel about it afterward.
Noboru's grin and comment towards the brother at the end made me feel that what he really wanted to say was "I just scored with your precious little brother, so take that, asshole."
Overall, the story was cute, but way too rushed. It didn't seem resolved to me. In the end, I was more interested in the Jinx guy than anyone else.