To Your Eternity (original Japanese title: Fumetsu no Anata e, literally "To You, the Immortal") is a manga series created by Yoshitoki Ooima, previously known for the acclaimed A Silent Voice. It began serialization in Weekly Shonen Magazine in 2016.
The story follows an immortal being sent to Earth with the task of gaining experiences. The being can shapeshift into forms learned from things that have died near to it. Things ranging from stones, weapons, animals, and people. These forms do not come with memories leaving Immo to learn even the basics of living on their own.
Part 1 of the story ended in 2019, spanning the first 12 volumes. An anime adaptation premiered on April 12, 2021.
To Your Eternity provides examples of:
- Adult Fear:
- Pyoran, the closest thing Immo had to a mother figure, the old and kind woman teaching him to write and live among the human doesn't get to die of violent death. Instead, growing old with an immortal Immo, goes increasingly senile, develops dementia and Alzheimer-like symptoms until the active, lively mother hen becomes a broken, depressed and sullen shell of her former self, unable to care for herself and plagued by small moments of lucidity spent bemoaning her lost youth and health and begging the Beholder following Immo around to let her go remembering those happier times. In her Nostalgia Heaven she's fully aware of her death, she just happily enjoys being freed of her failing mind and body, while Immo, during her last days, he's brought to become a saddened Stepford Smiler and after her death mourns her passing for decades and how helpless he felt around her. A fate known by most people in their shoes.
- March's sacrifice is a straight example but inverted from her perspective into Child Fear. March doesn't understand death and only understands that she'll never grow into the adult she wants to be.
- All Deaths Final: Out of some of the many things Immo can't bring back, the dead is amongst them. He can recreate a husk of a body, but it will remain lifeless. However, this is slightly played with, as the most recent chapter shows him creating a husk of the princess who had recently passed, but soon after he leaves, the king yells that he can feel her body become warm.
- Everyone Has a Special Move: Most of the people Immo carries has a special ability he uses depending on the situation.
- In his animals arsenal, Johann allows him to dig, the mole lets him hide, the bear gives him a powerful strike, and Ilgard allows him to fly.
- For the humans, March is good at climbing trees, Gugu has his Booze Flamethrower (which is especially effective against the Nokkers), and Parona has excellent combat skills.
- Foreshadowing: Prince Bonchien lives with several people, including a man with one arm who teaches him fencing. His sword passes through the man with one arm, revealing that he can see ghosts.
- Generational Saga: Immo being immortal, the series follows him throughout different eras, skipping increasingly long spans of time as he interacts with descendants of people he has known until we reach the modern era at the end of volume 12.
- Immortality Hurts: Immo still feels pain. One of his forms includes recreating the dozens of arrows the original thing had embedded in the skin, which Immo describes as causing constant pain while in said form.
- Nostalgia Heaven:
- What most of the people Immo interacts with see after they die, before noticing that what they're seeing isn't reality and they have passed on.
- It is revealed that the Nokkers kill people so that they can go to this heaven, not understanding why humans would prefer to live.
- Resurrective Immortality: Immo can die, and takes on the form of things in the state they were in when they died mortal wounds and all, but will heal. It is implied he heals faster after each death of the same type.
- Shapeshifter Default Form: Immo usually walks around at Johann's owner, the first human he ever met.
- Shape-Shifter Showdown: Immo encounters a plant based being who is able to steal his active form and blocking Immo from using it again until it is stolen back. This leads to a Shape Shifter Showdown as forms are stolen and stolen back.
- Spontaneous Weapon Creation: Immo learns, with the help of Gugu, how to use his shape shifting abilities to create duplicates of things used to attack them.
- Star-Crossed Lovers: Gugu and Rynn are this, due to his disfiguration and her arranged marriage, along with Gugu's death
- Technically Naked Shapeshifter: Immo's true form is a tiny egg shaped object who transforms into forms with the source's clothes, and other objects, they had on when they died. These clothes can be removed, but they were described as being sticky and weird.
- Virgin Sacrifice: Immo is named by a young girl who finds him en route to the sacrificial location.
- Voluntary Shapeshifting: Immo can change into a number of forms of things who died near him.