My Best Friend Marneao

My Best Friend Marneao is a webcomic written and illustrated by El Autor. It started serialization on Webtoon on July 3rd, 2016 and it's still ongoing. The series is divided in 3 seasons, with two intermessos in between.

Plot
A young boy named Jacob was alone until one day he sells his soul for a best friend. The son of Lucifer, Marneao, answers the calling and quickly becomes friends with the boy. However, this friendship is a violation of the rules of Heaven and a war between Heaven and the revolution (a group of demons who want to free Infeni from Heaven's claws) slowly starts to boil.

Humans
Humans are the inhabitants of Earth. The humans have a chance of a second life after their terrenal death. When a human dies, he's instantly teleported to Inferni, where they can start again.

Old Heaven habitants / Infernians
Infernians are the inhabitants of Inferni, the place where the people from Old Heaven where hidden by Yahveh after Miguel's attack. The population is divided in both humans and demons, they can get married and breed hybrids who are also considered demons.

Angels
Angels are the creation of God and the inhabitants of Heaven. The population of Heaven is mostly angels, since the current God hates humans.

Revolution
The Revolutionary Movement Against Heaven is a group of rebel demons who stand against Heaven. Most of the members are demons, but there are some humans doing other types of duties to keep the movement going.

Production notes
The comic was originally inspired by Yowamushi Pedal. Since my friends didn't read that manga and I really wanted to share the story with someone, I sarcastically said "maybe I should sell my soul for a best friend" and I was instantly inspired, starting the comic the very next day.

At the start, My best friend marneao was a weekly comic published on webtoon, but after chapter 65 it became biweekly to get me more time to live.

The decision to separate the story in 3 seasons was to give the reader the chance to fully understand where all the characters come from (season 2) so the comic could go full on the war arc (season 3). Both season 2 and 3 were preceded by an Intermesso that would set the mood for the next part of the story.

Other interesting thing to mention was that in first season, while the reader was on Earth, Infernian runes and enochian letters were used to address demons and angels, but after season 2, where the reader won't need to go to Earth anymore, those languages are automatically translated, changing even the logo of the comic.