One main theme could be the struggle between love and pain. Since it's 'Love in Sadness', there is likely a constant battle within the characters as they try to hold on to their love while dealing with the sadness.
The theme of hope could also be present. Despite all the sadness, the characters' love for each other might give them hope. They may believe that they can overcome the difficulties and that one day their love will be free from the cloud of sadness. This hope could be what drives them to keep fighting for their relationship in the face of all the odds.
One common theme is sacrifice. For example, in a relationship where one partner is ill, the other might sacrifice their own time, career opportunities to take care of them. Another theme is hope. Despite the sadness, there is always a glimmer of hope that things will get better for their love. And also, there is often the theme of acceptance. Accepting the difficult situation but still choosing to love.
One common theme is separation. Like in many stories, two lovers are parted due to various reasons such as distance, family pressure or unexpected circumstances, which brings great sadness.
One possible plot is that two lovers are separated by distance, which brings great sadness. They miss each other terribly and struggle to keep their love alive.
Another theme could be self - discovery. As the story progresses, the characters might learn more about themselves through their experiences with love and its fallacies. They may realize their own flaws in how they approach relationships.
One main theme could be the confusion between lust and love. People often mistake their strong physical desires for love at the beginning.
Growth could be another theme. As the characters experience love, they also grow as individuals. Their perspectives change and they learn more about themselves and what they want in life, all intertwined with the love story.
The main themes could include the exploration of different types of love. There could be passionate love which is like a high temperature, and then a more platonic or friendly love which is like a milder temperature. Another theme might be about the importance of communication in maintaining the right 'temperature' of love. If characters communicate well, they can keep their love at a comfortable 'temperature', but if not, it can lead to a drop or an overheating of the relationship.
One main theme could be courage. Since it's about 'daring' to love, the characters must find the courage to face their emotions, whether it's fear of rejection or fear of the unknown. Another theme might be self - discovery. Through the process of daring to love, the characters often learn more about themselves, their desires and what they are truly capable of.
I'm not sure which specific 'love in sadness full story' you are referring to. There could be many stories with this theme. It might be about a love that faces difficulties, like a couple dealing with illness or external pressures that bring sadness into their relationship.
If 'Love in Sadness' is a story, it may follow a pattern where the characters initially fall in love in a rather idyllic way. But then, as the plot unfolds, events occur that cause pain and sadness. For example, one of the lovers might get ill, or there could be external forces trying to tear them apart. This creates a complex web of emotions where love and sadness coexist and the characters have to struggle to either keep their love alive or let it go in the face of all the sadness.