I previously wrote a review for this anime but I wasn't quite happy with it so I'm remaking it... You can skip to the end for a quick summary.
Keep in mind that this anime is REALLY ecchi, there's nudity and sexual acts so if you don't like that kind of thing then don't watch this. If you didn't like it simply because it was short I'm kind of disappointing in you.
Story: 8
It's about a boy being engaged to a popular girl at school and them proceeding to live together. This kind of premise is not entirely unique so there's not much to say about it. But what originally appealed to me in the story was how they handled its ecchi. Instead of showing meaningless boobs on screen, they actually twist the more ecchi moments into actually being very romantic and intimate moments between the leads. Which serves as both not only fan service for the viewer but also very romantic and touching moments.
Art: 7
The backgrounds are okay, I didn't find them particularly hard to look at nor particularly stunning. The character models are nice and they often switch from more realistic human models to more chibi like models to convey comedy and make character to appear to be more cute with varying degrees of success. Animations are not stellar but they don't feel lazy.
Sound: 7
SFX is often off for example something makes a sound yet the sound appears 1 to 2 sec after that action. This is NOT TOO bad and can often be overlooked. The SFX themselves seems realistic and believable as does the voice acting. The OST is meh. None of the tracks stood out to me but they all help to convey the right moods at the right scenes.
Characters: 8
I found all the characters to be very likable. The mc, Izumi, is pretty mature and is NOT afraid to engage in sexual acts with our other mc, Ui. Ui herself can be pretty adorable and gives Izumi that extra push to actually do stuff with her, once engaged, Izumi is pretty ballsy compared to pretty much every other protagonist of an anime like this which is honestly an incredible breath of fresh air. The supporting cast is more or less forgettable, nothing really stands out but they are likable especially Ui's mother. Ui's mother, actually feel like a step-mom, yet she still feels like her own person as she has very childlike qualities that corresponds with her appearance. This anime also does a pretty good job at shoving details about the character's lives and their thinking without going right out and saying it making do on its incredibly short run time
Enjoyment: 8
Because of its admittedly fan service-y and ecchi nature of this show it easy to enjoy. However, because they spin in it ecchi in such a romantic way the show also becomes quite heartwarming. It's short run time also helps in this because the anime's short comings can easily be overshadowed by the more superior romantic moments.
Overall: 8
Watch if you want to see...
-An intimate romantic relationship
-A LOT of kissing
-A somewhat realistic approach to its engagement premise
-A popular girl/living together romance
NOTE: Keep in mind that these compliments ONLY extend to the s1, s2 is bad don't watch that the best I can give it is a 6 for s2 :\