Obviously Suzuki is her brother. Seen that before many times.
And why summer was skipped? Why we didn't see beach time? I love these characters, I love their designs, but also it would be cool to see them in non-school enviorement having fun without much worries. Meh.
So Umeki made a movie about two people trapped in elevator. Then why he wanted Ena to get naked? For what scene and why it was so important for whole movie? Well, I know why, he just wanted to see her naked because he's a pervert, but it's weird nobody adressed that.
So now we have Tsuyoshis yakuza, some US military cloning project, league of fighting women and these sketchy friends of Tsuyoshis mother. Are they gonna fight each other soon?
Tsuyoshi doesn't seen Teru as a friend. Now it's clear. Tsuyoshi wanted low profile, but normal and peaceful life. Baldy was pushing him again in some weird situation.
This one is not that simple. Japanese people love cool things, especially from the west. They managed to celebrate Christmas, even if they are not Christian themselves, just because they just liked atmosphere and such. Having a wedding in Christian church is such a thing and it's not uncommon...