Ryu angsts prettily on the bed, shirt half-undone, wistfully looking at his uniform.

One of my favorite parts *insert sound of my heart breaking here*
Breaks my heart because he really is a prisoner but damn it if Kame isn't the prettiest thing ever when he angsts.

I don't know if that piano is BGM or if he's listening on his cute, glowy hi-fi

OH! I always wondered if i was the only one who noticed his cute glowy hi-fi :D
It always makes me go 'Do want' that is, when i'm not going 'do want' at ryu. which are very brief moments, you understand...

So Ryu moves from angsting in his bedroom to angsting at Yankumi's house
Which was another pretty moment, worth of a screencap or two ;)

Also, Formation H is probably my favorite formation, along with Formation B.
Not only it's lovely to see Ryu, as you said, dropping his barriers and being happy, but there's also this cute cute SO CUTE moment where Ryu is still propped at someone's back and he looks back at Hayato, and Hayato looks at him and mouths something and...guh. My poor, akame biased heart soars happily.

he entire series is actually about Ryu and Hayato's forbidden love affair, which now has the Oedo Family seal of approval.
Ditto ♥