The plot twists in 'Their Secret Obsession' could be what makes it a notable reverse harem novel. A good reverse harem story often has unexpected turns that keep the reader engaged. For example, there could be revelations about the pasts of the characters that change the way they interact with each other. Or perhaps there are external factors like a mystery or a threat that forces the characters to come together in new ways, adding depth and excitement to the story.
Well, there's the female lead. She's likely to be a strong - willed character with her own goals and desires. Then there are the male characters. One might be the brooding type, mysterious and alluring. Another could be the charming and outgoing one, always ready with a smile. And there may be a more serious and studious male character as well. Each of them has their own reasons for being attracted to the female lead.
A secret obsession story could be about someone's hidden passion or fixation. For example, a person might have a secret obsession with collecting old stamps. They keep it a secret perhaps because they're afraid of being judged or they just like having something that's entirely their own private interest.
The following are some recommendations for modern harem novels: " The Useless Imperial Concubine Defies the Nine Heavens "," First Class Palace Maid "," The Heaven-defying Female Doctor Reborn with Special Abilities "," Regret Medicine!" My Space-Time Backtrack Ability, Ability Spoiling Marriage: The Reborn Queen of Scheming, The Reborn Ability Wife, The Queen of Ability's System, He's Jealous Again, Miss Ability, and so on. These novels covered the theme of modern anti-harem. The female protagonists showed their wisdom and courage through various ways to save their lives and fight against love. Among them," The Useless Concubine Defies the Nine Heavens " told the story of a vicious female supporting character who was originally wanted by everyone to be killed and transmigrated to the ancient harem. How did she counterattack and save her life? In " First Class Palace Maid ", the female protagonist was reborn and was instigated to climb the young master. How did she counterattack and fight the villain? These novels had interesting plots and were worth reading.
I'm not sure specifically as there could be many novels with that title or concept. It might be about a character's hidden and intense desires or fixations.