Which Animes Feature Complex Themes Similar To 'Origin'?

A new world with nearly unlimited possibilities. A system, classes, magic, skills and monsters. Sounds exciting? But for Jin it didn't go quite as he expected nor was there a princess or a Goddess to welcome him to this new world, his only hope was the system he received. Left alone in the darkness, How will he survive when he wasn't human in the first place?

If you had a chance to be reborn into a new world, would you change anything? A series of stories of being reborn and changing ones fate.

What is fate? Is it something that was destined to happen? Can it be changed? No. If it can be changed, it would't be known as fate, isn't it? They say that fate can be control in our hands. Then, is it possible to take everything in total control in my hands?, I wondered. No, whatever the results is, I'm sure this was fated to happen under my control. This world... will surely go along with my favor. ................ "PLEASE!!! I BEG OF YOU!!! Join the Imperial Knights Academy as a special student or else I will be fired!!!" With such a line thrown to him, the 16-year-old human, Lucifer Nightwalker von Nightmare, an orphan who was stranded on an island with her little sister and magical pet-- was forced to compromise and attend the famous Imperial Knights Academy as a special student. While spending 3 years in the academy, he would meet his fated ones. After he graduates, he would then become an adventurer to explore the world, unlocking the secrets behind. This, will be the starting of his journey. In a world of sci-fi and fantasy. Humans, beast-kins, dragons, vampires, elves, fairies, spirits, dyrads, archangels, demons, dwarves, magical beasts, and much more, co-exist. Which later then, he would become a king-- leading everyone to challenge against the Celestial Gods. However, that was the boy's fate. ...................................... Everything begins with that fateful meeting six years ago. His fateful meeting with the principal of The Imperial Knights Academy. Yet, it wasn't even the beginning of fate. .....................................

A student on a school camping trip gets possessed by an unknown creature; giving him special abilities and forcing him to its bidding, thus bringing a devastating threat to the camp and its surroundings. Has an elusive evil truly returned? Can the possessed student find a way to regain full control? And what are the origin and motives of the creature? Dive into a world of ignorance, mysteries, and thrills as the Unknown Origins series unfolds. Black River (Apocalypse Uprising) [Major sub-story synopsis] Dolly and her best friend Chesa go on a trip to visit the enchanted river, unaware of the strange happenings in the community living close to it. What will happen if their quest for paradise leads to desperate attempts to survive? and will they ever return home from the nightmare? [sub-stories in this book can be read at anytime the reader wishes, but it is advised to follow the plot sequentially. See note for more information. This book is rated 16+ because of its dark theme.]

After falling in a great war with the dark realm that had lead to the death of a god, many gods and goddesses had come up with a plan to appoint their subordinates, 'the deities'. Aubrey was a mortal that had been visited by the god Hades and given the chance to become a god and live a life of immortality. Despite not loving the idea of being immortal, Hades forces him into it and gives him purpose. Aubrey later finds boredom aimlessly protecting his realm and kingdom and decides to find his soulmate. The oracle of life grants him his wish, however, his not the only one she belongs to. There is another identical soul to Aubrey within the dark realm. An identical soul filled with hatred and obsession in wanting to kill his original and take over his soulmate and life as Hades's deity.

In the era of mystical magical creatures, "The Continent" is a magical realm where all supernatural beings co exist together under a peace treaty. The continent is a barrier between the demon realm and the human world, and its land is blessed with an immense amount of magic. But, When the seal of time breaks, enemies once again rise from the depth of drakness, the protectors are born, and tasked to finding their way towards each other to help prepare for the last war.