"Only if you vow to keep this secret and continue serving me your blood as "food" for eternity..." Ruri, a weak and overworked office worker, finds solace in Gilbert, her favorite character from the otome game "Vampire Mansion." One morning, after pushing herself too hard, her co-workers find her collapsed at the office, and her body is already cold... However, when she awakens, she finds herself in the game world, and even meets Gilbert...! She has been reborn as Fiona, the fiancee who is destined to be killed by him! Fiona's struggle to avoid this fate and to be close to her beloved character begins. Over time, her feelings shift to wanting to save this man who has never been rewarded. Thus begins the story of the cursed vampire duke and the reborn side character.

Lilia, the newborn daughter of a marquis, has the memories of her previous life! With cheat-like gamer knowledge she aims to become the strongest girl in this new "other world"!

The knight from a noble family suddenly made a marriage proposal to me! He probably wants to get rid of me as soon as possible, so I'll have to work hard to make a baby! A love story between a common magic healer and an awkward noble knight.

I'll play the villainess in order to destroy my kingdom! Princess Lilnette, who hates her homeland, plots to break off her engagement by being rude to the crown prince of a neighboring country...?

"Just go ahead and call off our engagement!" Gina was betrothed at age 8 at the behest of her family. However she and her fiance, Carlo, have spent every waking moment with each other fighting. Despite Gina secretly harboring feelings for him. One fateful day, Gina tells him to just call the whole thing off and tries to run away from an unpleasant situation, however she ends up tripping and falling down a staircase which causes her to go unconscious. When she finally wakes up, and after a small misunderstanding, her family believe that she has amnesia, so Gina pretends to not remember asking Carlo to break off the engagement and everything from the past month. However, when Carlo does come to see her, he tells her, not about their engagement breaking up, but that he proposed and that she accepted. Now that he's seemingly all over her, where will their new relationship take them...?!

"Shuran... You will go to the inner palace instead." The daughter of a wealthy merchant, Sai Reiran, was chosen to become His Majesty the emperor's newest consort, however, on the trip to the Imperial Capital, she runs away with the son of another merchant! In order to fulfill the emperor's orders, and keep their heads, the family orders Reiran's cousin, Shuran, to take her place instead! They tell her to just pretend to be Reiran, while they search for the real one, however that's easier said than done! Shuran struggles to keep her real identity a secret and ends up being caught up in all sorts of trouble! Not to mention the intrigues and plots that go on daily in the inner palace... How will Shuran survive...?!

First Princess of the Elixir Kingdom, Roselia is referred to as the 'Poison Princess' and is hated by many. She was unfortunately born with the power to create poisons rather than the ability to create 'Cure Potions'--a healing power passed down in the royal family. Roselia was given the chance to have her position solidified as the heir to the throne after her mother died. That was the condition? To be able to create Cure Potions before the age of 18. Roselia, alone, tries her hardest to create Cure Potions, and then she meets the one of the few people who have ever treated her nicely, Lord Elliott, her cousin! She finds herself drawn to him and he proposes!"Do you wish to rewind your life?" At her lowest moment, overcome with despair, the Poison Princess's fate changes, and she heads off onto a new journey to find happiness and... maybe even love...?

"Won't you have any regrets about breaking off our engagement?" Lady Daisy, the Marquess' daughter, is engaged to Prince Freddie and works hard to become the future queen. One day, Freddie catches an unknown disease. Aside of Daisy's desperate nursing and praying, a saint named Lula comes and saves Freddie. Freddie falls in love with the saint and starts saying that he has found "true love"! He easily dumps Daisy and becomes engaged to Lula. Once her engagement is broken, Daisy's story of fate begins...! This is a story of reclaiming one's life and destiny triggered by a broken engagement.

"There's no such thing as sincere love..." Mianna Caroline was raised strictly as a light mage user from a young age. After her mother passed away, her father remarried and adored her stepsister, ignoring Mianna. Then, to make matters worse, her fiance broke off their engagement, saying he wanted to marry her stepsister instead. Mianna always believed that living honestly would be rewarded, but this betrayal makes her fall into using "dark magic" that humans aren't supposed to have access to. But in the next moment, she wakes up to find herself returned to the day she was born! Then, God tells her, "I'll give you a second chance." With a fresh start, Miana's journey to find love and heal her heart begins again...

"I always believed I was the only one who should stand by his side..." Prince Ashley, the first prince of the Kingdom of Sforzia, and Lady Violetta, a duke's daughter, are engaged to be married. Although their engagement was arranged for political reasons, Violetta has worked hard to support him as the crown prince since they were young. However, as she became busier, they started spending less time together, and Ashley became close to a cheerful and naive young lady, who is Violetta's complete opposite. Then, Violetta hears a shocking rumor: "Poor Lady Violetta. Imagine being cast aside by the crown prince!" Rather than let another young woman take him away, Violetta makes a firm decision: 'Fine, I'll be the one to end this engagement!'

Odette, the daughter of a count, is arranged to marry Alphonse, the royal guard she has long admired. But this marriage isn't born of love; it's a royal decree.On a rainy day, Alphonse, a master of both swordsmanship and magic, saved Odette from a bandit attack. Struck by his gallant presence, Odette fell deeply for him. However, she soon heard a troubling rumor that Alphonse and the princess were secretly involved as lovers.Despite her heartbreak, Odette kept her feelings hidden. Years later, a marriage proposal arrived, and her intended husband was none other than Alphonse. Knowing the marriage was a cover to hide his forbidden relationship with the princess, Odette still accepted, unable to deny her longing for him.And so began a bittersweet tale of unfulfilled love, destined to be marked by heartache and quiet yearning.

"Even if it's just for show, I wouldn't mind being loved by this man"Countess Ruzette has been searching for a husband ever since her debut in high society, but her engagements always end for the same strange reason. After yet another broken engagement, she finally discovers the truth at a debut evening party: people have been mistaking her for the popular debutante "Luzette Datal", who shares both a similar name and appearance!As she tries to move past the confusion, Ruzette receives a marriage proposal from Duke Laures Visant, a man renowned for his status and prestige. Convinced this is just another misunderstanding, she plans to help him realize the truth and call off the engagement. But no matter what she does, the duke's relentless and passionate pursuit of "Luzette" shows no signs of stopping, even though she's not the "Luzette" he thinks she is!