Shinobu isn't like that. The rest of them, yes, but Hiroki is becoming more open lately. Ritsu is becoming more bold too, but is still passive. I think he knows more than anyone how he truly feels. Some are growing up faster than others basically. Shinobu knew what he wanted from day one.
Shinobu is straightforward and I love the little guy but I recall him being disliked a lot back in the day for being persistent and actually wanting Miyagi. I even remember people preferring Miyagi with Hiroki. The Misaki Uke is so common because the truth is most girls reading this don't like persistent ukes. That's why Shinobu types are much more rare. Personally I prefer assertive ukes.
I just got done rereading early Terrorist chapters. I freaking adore him with Miyagi, because they are so receptive to each other. When Miyagi is anxious or insecure, Dhinobu brings him back down to earth, and when Shinobu is being stubborn, Miyagi doesn't pick at the issue. He gives him his space and assess things, then lets him have it, but his emotions get the best of him. He's so honest and easy to read. The two just work well together. I hated him at first too. The manga is what made me like Shinobu a whole lot more. I remeber those early days. Hiroki x Miyagi never clicked to me. Nowaki is practically Hiroki's soulmate.
i don't know why. but i get feeling almost all uke in this author manga have same annoying personality. like he know he like seme, he also have xxx, angry when seme in to other but like denying their love. and also often misunderstanding third party words. ahh.. well i just kinda what the heck kinda people is that?