Darling In The Franxx! - 4-Koma.
Human development in the early 21st century was change by advances technology, allowing magma energy for a new energy source.
Scientists that contribute to the breakthrough, would gain major control over politics and the economy worldwide.
The discovery of human immortality, despite the side effect, much of humanity decided to become immortal.
A personality cult worship Papa, the chairman in the image of a deity.