At first it was a little weird for me, but then I settled into the story. It was hilarious that all kinds of women were attracted to Yui, and all kinds of men to Asuka (and the latter never noticed his own predicament). Lol!
The art is a bit unusual, but definitely still very pleasant (I especially love the way Yui is drawn - very lithe and interesting! And not too posy).
I feel a little bad for the younger one, since he's loved the elder for 10 or 11 years. Wow.
The characters are great together. I even love the mom, dad, and little sister (I love that the mom met the dad, decided he was the one, and snatched him up - hot), and the manager (she was badass)! And I'm so, so happy they're not related by blood (sibling love makes me uncomfortable, as I have several siblings myself, and...ew).
It's a lot of the things I love in one story! and two volumes! Yay!
Weirdly, the older brother reminds me of my grandpa with his personality (only my grandpa was more self-aware)... I'm sure that should mean something, but whatever.