Maybe there are two unique birds in the 'sad bird love story', for example, a peacock and a dove. The peacock might be ostracized because of its flamboyant appearance, and the dove is seen as too plain. Their love is frowned upon by the other birds, and they are the main characters in this sad tale.
Since I don't know the exact 'sad bird love story', I can't say for sure. But it could be two ordinary birds like a sparrow and a finch.
I'm not sure as the title doesn't give specific details about the characters. But usually in a sad love story, there would be a couple, like a man and a woman in love. Maybe there's a protagonist who is deeply affected by the sad events in the relationship.
The main characters in the love bird story could be the two love birds themselves. They are likely to be the central focus, with their actions and relationship driving the story forward.
The main characters are surely Sonamy. They are the ones who experience the love and the sadness associated with it. They might have different backstories that lead to their fateful encounter and subsequent heartbreak. For instance, one of them could be recovering from a past relationship trauma while the other is looking for true love for the first time, and these different states of mind contribute to the complexity of their relationship.
I don't know for sure as the 'gacha sad love story' isn't a widely known specific story to me. But usually, there would be a male and a female character. Maybe a young hero - type male who is obtained through the gacha and a female player character who falls for him.
I'm not sure specifically since there's not much information given. But it could be a young couple who are in love at first but then face problems.
Most likely, the main characters are the stickman and the object of his love, perhaps another stick figure. It could be a stickwoman or even another stickman if it's a same - sex love story.
Maybe there are two people who are very different from each other. One could be a shy and introverted person while the other is outgoing and confident. These two main characters meet and fall in love, but their differences also cause problems in their relationship, which could be part of the super sad love story.
In the 'sad gaara love story', Gaara is surely a main character. The other main character could be someone who is kind - hearted and initially attracted to Gaara's hidden vulnerability. Maybe it's a healer in the village who tries to help Gaara deal with his emotional wounds and in the process, they fall in love. But their relationship is doomed to be sad for some reasons.
It could be two common Webkinz pets like a bunny and a fox. They might be the main characters who face a sad love situation.
The main characters might be the sad doll, of course. There could also be a caretaker or a playmate in the story. If it's a more complex story, there could be other toys or figures in the doll's world that play important roles, like a friendly teddy bear that tries to console the doll during its sad love affair, or a mean little puppet that causes trouble in the doll's relationship.