Akari Ayame lived 99 lives. 99 lives as the same person, life events and the same fate. Her death at the hands of her love rival and unrequited love. No matter how many different paths she took, in the end, her death was the same. 99 reincarnations. 99 trials to seek her happy ending. 99 tribulations of sorrow, anger and regret. 99 heartbreaks. 99 deaths. In the end Akari was tired of trying. She thought that the reason why she kept reincarnating was to find her happy ending with the man she loved. But with 99 fails, she was tired of the same fate. This time, her 100th time, she would be the matchmaker for her love rival and unrequited love. She will no longer block their love and try to live her life without sorrow, anger, regrets or heartbreak. With the fickle Gods of Fate, how would Akari know that it would only take 100 tries for her to find her happy ending.

Rika is a 15 year old girl who no one notices. If someone does notice her then they always bully her. She's the smartest student in her grade and whenever she does well on a test others always bully her. But her grades are never enough to please her family. They always push her to do better because her twin brother already graduated from college and works as a scientist at a famous lab. One day on the field trip with her school they went to visit the lab her brother works at she had enough. When everyone was given a tour she ran out to the woods behind the lab. She continued to run and before she knew it she was falling off a cliff. When she woke up she was in an unfamiliar world. When Rika wakes up she realizes she is in another body, and she is a baby! The country she is in is called Yviene which is at war with the neighboring country Valyn. Not only that but her memory is way better and she is born into a wealthy family that most of her aunts and uncles wish to kill her except one. She is raised by one of her uncles who is an alchemist and a woman who works for her grandfather who dotes on her. But when she reaches the age she has to enter Sythril Elthen Academy which she makes many friends and enemies. But what she doesn't expect is that she will somehow return to her own world whenever she falls asleep and no time has past. In the end, Rika has to make the decision of which world she will want continue to live in the end.