I'm not sure about an exact similar novel off the top of my head. But novels with themes of love in natural settings might be similar. For example, 'A Walk to Remember' which also has a strong love story set in a small town with a beautiful natural backdrop.
There are many novels that could potentially be related. 'The Notebook' is one. It shares the common element of deep love, and while not specifically on a 'turquoise land', it has beautiful settings that evoke strong emotions, much like what we might expect from 'love on the turquoise land novel'.
Love, obviously, is a major theme. It could be about different kinds of love, such as romantic love between the main characters.
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There's 'Dear John', which is a love story that deals with separation and the power of love over distance. The characters face difficulties but their love remains a strong force. 'The Time Traveler's Wife' is also somewhat alike as it has a unique take on love with the time - traveling aspect. It shows how love can be unwavering despite the odd circumstances, much like the love in 'Sweet Land A Love Story'.
One similar light novel could be 'Sword Art Online'. It also has an immersive world with various challenges for the protagonist. Another one is 'Overlord' which features a powerful character in a different kind of fantasy setting.
Another great love novel is 'The Notebook'. It tells a beautiful and poignant love story that spans over many years. The characters' love is so deep and endures through many difficulties, which is very touching.
'A Walk to Remember' could also be considered. It has elements of young love, and the emotional journey of the characters is somewhat comparable to what might be in 'your love novel'. The themes of sacrifice and growth in love are common to both.
One similar novel could be 'A Walk to Remember'. It also focuses on deep emotions and relationships like 'love syndrome the novel'.
Another one is 'Jane Eyre'. The relationship between Jane and Mr. Rochester is full of twists and turns. There are secrets, social differences and moral dilemmas, much like in many other classic love novels. It's a story about a strong - willed woman finding true love in a complex world.
One similar novel could be 'A Warm Embrace'. It also focuses on the power of love to heal and has characters who go through difficult times but find solace in their relationships. Another is 'Love's Redemption', which shows how love can transform and heal broken souls. And 'The Gentle Touch of Love' is also a great one, with its story centered around love mending emotional wounds.
One could be 'Pride and Prejudice'. It's a classic love story filled with complex characters and the exploration of different forms of love. Another might be 'Wuthering Heights', which has a very intense and passionate love at its core. Also, 'Jane Eyre' is a great choice as it shows a strong female lead's journey in love and self - discovery.