人生どん底のダメフリーター花垣武道（タケミチ）。中学時代に付き合っていた人生唯一の恋人・橘日向（ヒナタ）が、最凶最悪の悪党連合”東京卍會”に殺されたことを知る。 事件を知った翌日、駅のホームにいたタケミチは何者かに背中を押され線路に転落し死を覚悟したが、目を開けると何故か12年前にタイムリープしていた。 人生のピークだった12年前の中学時代にタイムリープし、恋人を救うため、逃げ続けた自分を変えるため、人生のリベンジを開始する！
大国・ティアムーン帝国で“わがまま姫”と蔑まれた20歳の皇女ミーアは、 民衆の革命によって断頭台で処刑された。 はずが、目覚めると12歳の頃にタイムリープしていた！ どうやらここは、やり直しの世界―― 彼女の枕元に置かれていたのは、処刑される前に自らが綴った血染めの日記。 第二の人生を歩み始めたミーアは、帝国の立て直しを決意。 帝国の未来のため？ 民衆を飢饉から救うため？ 内戦により命を落とす多くの兵士のため？ じゃない！ すべてはギロチンの運命を回避するため！！ 「こ、これぐらいわたくしにかかれば簡単ですわ！」 小心者で、保身上等＆自己中最強のポンコツ姫が、自分のために大奮闘。 わがまま姫様の行動がまさかの奇跡を巻き起こす、歴史改変ファンタジーが始まる。
It's been nearly 30 years since Dr. Sam Beckett stepped into the Quantum Leap accelerator and vanished. Now, a new team, led by physicist Ben Song, has been assembled to restart the project in hope of understanding the mysteries behind the machine and the man who created it. Everything changes, however, when Ben makes an unauthorized leap into the past, leaving the team behind to solve the mystery of why he did it. At Ben's side throughout his leaps is Addison, who appears in the form of a hologram only Ben can see and hear. She's a decorated Army veteran who brings level-headed precision to her job. As Ben leaps from life to life, putting right what once went wrong, it becomes clear that he and the team are on a thrilling journey. But they also know that if they are going to solve the mystery of Ben's leap and bring him home, they must act fast or lose him forever.
In 1985 Hill Valley, an inquisitive teenager named Marty McFly travels back in time in order to save his parents marriage and just maybe -- his own life.
A mysterious criminal steals a secret state-of-the-art time machine, intent on destroying America as we know it by changing the past. Our only hope is an unexpected team: a scientist, a soldier and a history professor, who must use the machine's prototype to travel back in time to critical events. While they must make every effort not to affect the past themselves, they must also stay one step ahead of this dangerous fugitive. But can this handpicked team uncover the mystery behind it all and end his destruction before it's too late?
