Boku no Pico.
its not a cartoon its anime lol and it has a small hint of romance
school rumble
It's an anime, not a manga. They made a manga out of the anime, but watch the anime instead. And if you're so insistent on reading the fake non-canonical version instead, then you can't skip a single page. If you miss a single detail, the plot will fall apart. The nudity is integral to the plot.
Yes. Genocyber is very violent and gory. It also has sex and nudity in it.
romance
There are many, but Inuyasha is a long running anime with fighting and romance.
Boku no Pico.
no
Shigatsu kimi wa uso and Nodame Cantabile are among the most popular romance and music anime.
its not a cartoon its anime lol and it has a small hint of romance
There is no anime for 1/2 Prince. It's not even a "manga". It is a "Manhua" and novel. But the Manhua does have romance. It is a romantic series.
school rumble
yosuga no sora ^.^
It's an anime, not a manga. They made a manga out of the anime, but watch the anime instead. And if you're so insistent on reading the fake non-canonical version instead, then you can't skip a single page. If you miss a single detail, the plot will fall apart. The nudity is integral to the plot.
Yes. Genocyber is very violent and gory. It also has sex and nudity in it.
Yes read the perverted comments and the summary above the episode