I liked that unlike most romance manga this pretty much started with their first kiss (rather than ending with it) and it showed their first time too, so it was more realistic in that way, but it was also slow and boring and by the end I didn't care at all.
Somewhere past the halfway point in the story there was this weird, unexplained (maybe forced), part where she started
falling a little out of love with him, for no reason whatsoever, then after not seeing each other for 3 weeks she says stupid stuff like "being with you is exhausting" which resulted in them taking a break for 2-3 months.
This is where I stopped caring about her. Then in collage she puts everything he's ever given her in a box and hands it back to him, if that is not a break-up, WTF is ? but no, she was just in pain (?) and wanted him to hold it for her (WTF?) Maybe I just don't get it, but this isn't my first or even 50th romance story...
Through some miracle I managed to read it until the end, but I regret it, nothing interesting ever happened.
There could have been some comedy, we got none.
There could have been more couples to make it more interesting, we got none.
Some interesting characters ? nope, none.
It also introduces random relatives that we don't even get to learn their name and are pretty much gone the next page, while this is realistic there is a reason most stories don't do this.
The 2nd half also had so much repetitive sappy stuff, just saying how much she loves him and how thankful she is ... bla, bla bla, a million times over and in a million different ways, all meaningless at this point since it's not saying anything new.