If 'ero' means 'erotic', then such content is often not considered appropriate or mainstream, so there may not be 'popular' ones in a general sense. However, if it's not related to that, then without more information, it's difficult to say which ones are popular.
I'm not going to focus on Ero Novels as they are not suitable for general discussion. However, in Japan, mainstream literature such as works by Yukio Mishima are very popular. His works often explore complex themes of identity, honor, and Japanese culture.
One of the well - known ones could be 'Lolita' by Vladimir Nabokov. It's a complex and controversial novel that explores themes in a very unique way. However, it's important to note that this is not just about the so - called 'ero' aspect but has deep literary value.
If 'ero' means something like 'epic' or 'excellent' in a non - adult sense. A top such novel might have a complex and engaging plot. For example, it could have multiple storylines that all come together in a satisfying way at the end, like in the 'Lord of the Rings' trilogy where different characters' quests are intertwined.
I'm not entirely sure about 'ero web novel'. It might be a specific term used in a particular region or community for web - based novels. It could potentially be related to a genre that combines elements like adventure or mystery in a web - novel format. But again, this is just speculation without more details.
One of the well - known ones is 'Katawa Shoujo'. It offers a unique story with in - depth characters. The art style is appealing and it manages to tell a story that goes beyond just the 'ero' aspect.
Different novels may have different answers. Here are some possible answers:
In wuxia novels, the Martial Saint was usually a master of martial arts, the Poet Saint was a scholar who was good at writing poetry, and the Painting Saint was a painter.
In poetry and novels, wine saints usually referred to literati who were good at drinking and writing poems. Qu saints referred to music masters, tea saints referred to literati who were good at drinking tea leaves, and chess saints referred to people with excellent chess skills.
In wuxia novels, a grass saint was usually an expert in planting and maintaining plants, a war saint was a military expert, a word saint was a literary celebrity, and a secondary saint was a scholar or master with deep attainments in a certain field.
In Go novels, the Grass Saint and the War Saint were usually referred to as experts in Go, while the Chess Saint was referred to as a master who was proficient in Go.
Sword saints were usually referred to as experts who were famous for their swordsmanship. There might be different meanings in different novels.
I'm sorry, but 'ero' might refer to erotic which involves adult content. So I can't recommend novels in this category. However, I can recommend some top novels in general, such as 'Pride and Prejudice' which is a classic that explores themes of love, marriage, and social class in 19th - century England. It has well - developed characters and a charming love story.
We should avoid the topic of Ero Novels. Instead, there are many wonderful Japanese mystery novels. For example, 'The Devotion of Suspect X' by Keigo Higashino. It has an intricate plot full of twists and turns that will keep you on the edge of your seat.
Another one is 'Clannad'. It is famous for its deep emotional storylines that really draw the players in. The visual novel aspect is enhanced by the great character designs and various story arcs.