Man, I love how they fake you out by making the first chapter the most unbearable sappy romance story ever, and then destroy it with that ending. No matter how many times I reread this manga it's always shocking how good it all is. Especially since it's the only shoujo manga I've found with actually good writing and likeable characters. (Gekkan Shoujo Nozaki-kun doesn't count. It's considered Shounen)
I know it's been like 3 years, but I'd like to recommend
Ascendance of a Bookworm as a fantastic shoujo series. Good writing and interesting characters, plus a lot of cool worldbuilding.
If you don't mind villainess manga, then
The One Within the Villainess and
May I Ask for One Final Thing? are also fantastic. The former has gorgeous art and great characters, and the latter is just really fun.
Alternatively if you just want something a bit chill,
Mr. Villain's Day Off is a really cute way to look at the Tokusatsu genre. Some of the chapters can hit surprisingly hard.