Yes, the art was cute and the story as how it go is good until the last two chapter. One thing I must consider is the realistic element of this manga while it try to balance its comedy and cute style (I like its cute style anw)
In the last two chapter
The MC get back with the mature man leaving her ex-boyfriend behind and having loveley donvey later on
Ok, what I'm going to write now is a little biased when I feel bad for her ex-boyfriend but yeah, this manga has the way that make things seem realistic which is not all fair for all character in the end. That doesn't mean I'm trying to argue that the ex-boyfriend is forgivable but I think that, in some ways, he should have given more understandable thoughts.
The ex-boyfriend cheating on MC so he got dumped. Yes, it's reasonable and his reason that MC just don't care about him is reasonable too. Let get real, when your love one rarely pay attention or show his/her passionate or affection to you, do you feel that he/she love you? Hence, break-up is a good choice for both. He cheating on her but at the same time, she act cold to him. It's not about who's right and who's wrong. It's just things happen as they are supposed to happen in that situation.
About MC new love drama, the manga get worse there. Let consider his reason he's just married on paper, so how about the co-worker girl, why don't he give her a no at the first place but after he settled with MC. Isn't that the same as MC cheating on her? And about the MC, she forget about her ex easily but can't do it with the mature guy. Isn't that biased though I know this manga is not about being fair and the character is just the human so they may have emotional thoughts. And what, the ex at least confess cheating and give proper apology while that guy only admit when being asked. The author would better give more reasonable explanation to this.
Moreover, about MC's dream to be an illustrator, the later of manga doesn't say anything about it and just loveley donvey thing. I'm being fine with that she break-up with the mature guy and looking for a brighter future with her dream but then the last 2 chap disappointed me.
I was going to give it 8/2 till chap 13 but then I didn't want anymore. 7.5-7.7 may be the best I can give. At least I enjoy the art style. Hope MC ex can forget about her.