Well, if it's a story about a bridegroom, definitely the bridegroom himself is a main character. The bride is very likely to be another main character as they are central to the concept of a wedding. Additionally, there could be other characters like the priest or minister who is going to officiate the wedding. There might also be a rival or an ex - lover who could create some drama in the story. And don't forget about the friends of the bridegroom who could be there to support him or give him advice throughout the story.
I'm not sure specifically as I haven't read this particular 'the bridegroom short story'. It could be about a bridegroom's journey to the wedding, his feelings before the big day, or perhaps some challenges he faces in relation to getting married.
The story 'Robber Bridegroom' mainly revolves around a girl's encounter with a man she is supposed to marry. Unbeknownst to her at first, he is part of a group of robbers. As the story unfolds, she stumbles upon their lair and uncovers their evil deeds. Eventually, she uses her wits to save herself from this dangerous situation.
I'm not very familiar with a specific 'the toad bridegroom Korea' story. It might be a relatively rare or regional folktale. It could be about a toad that somehow becomes a bridegroom in a Korean - related context, perhaps involving magic or a strange turn of events in a traditional Korean setting.
Another theme could be the struggle between individual desires and social obligations. The characters often find themselves having to choose between what they personally want and what society dictates they should do. This is especially true for the bridegroom as he navigates through the events related to his marriage.
Perhaps the toad itself is a key element as it's the main character who is the bridegroom. Another could be the setting in Korea which might influence the cultural context of the story.
I recommend Du Chan Yin, an ancient romance novel, to you. The plot and title are all in line with your needs. The female lead drank poisoned wine and died. She even repaid her kindness. The male lead's trust in her was actually fake. The two of them were husband and wife in their previous life, but in this life, the female lead was engaged to another man. The male protagonist clenched his fists and was determined to fight to the death. Even if he was deceived, he would not regret it. I hope you like this fairy's recommendation. Muah ~😗
The female characters, like the bride, are also well - drawn. They are presented as being subject to the cultural norms of their society. Their actions and reactions are often a result of the social expectations placed on them. For example, the bride's behavior towards the bridegroom is influenced by what is considered appropriate in their culture.