The discussion in the Manga I’ve Given Up On post, combined with David Welsh’s comments, reminded me of several more titles. These didn’t come to mind originally because I’ve been disposing of the volumes, so they required a bit more memory-prodding.
Baby & Me — Cute characters, but too many of them too quickly (with all the siblings of the family down the street), and not enough depth. Ended with book 3.
Cheeky Angel — Not enough forward movement, and I enjoyed the boy-in-a-girl’s-body premise more before he started accepting his gender switch. Stopped at book 8? 10? 12? I don’t remember. (Also, this series was a victim of a site change. When transferring over pages from my previous static setup into WordPress, I reconsidered its recommended series status and demoted it.)
Crimson Hero — I was more interested in the culture clash aspects than the volleyball competitions, and the author didn’t agree. No harm, no foul, but there’s other things to read. Quit after book 4.
Hot Gimmick — Whenever people tell me that I’m not optimistic enough, that I don’t have enough faith in authors to turn stories around, I think of this deplorable series and laugh. I read the whole thing and was disgusted that no permanent character development took place.
Iron Wok Jan! — Too much of the same, and the portrayal of the girls (both as basketball smugglers and as supporting cheerleaders) became grating. I stopped a few volumes after this review (book 16).
Kare Kano — This writeup covers many of the same details as the conversation we’re having here, and the commentors filled in more.
Nodame Cantabile — As David suggests, I’m not listing books where I sampled a first volume and didn’t care for it, because that’s outside the scope of this exercise. I mention this one only because I tried it twice, again after reader encouragement, and it’s just not for me. The pigsty lifestyle of the lead put me off.
Rurouni Kenshin — A samurai superhero was a fun novelty, but I admit, it was more entertaining when I was getting the books for free. When Viz stopped promoting it, I gave up, I don’t recall when.