There is no such thing as “Good Guy”
A concept that makes WHB “charming” and appreciative is how there’s no true villain or hero. The line that defines evil and good, despite there being angels, dragons, demons, and humans, is nonexistent.
Disclaimer: Spoilers for Chapter 5, Events, Gamigin, and Lucifer!
We are put under an illusion such a line exists when we see the human MC get attacked by Gabriel, only to be saved by Satan. From that point on and all the way to Chapter 4, everything seems to be set in stone that the villains are the angels, whose goal is practically to assert their race as the only living race as a mean to receive all of “God’s” love since they are jealous that they aren’t the ONLY race to receive his love. This includes the whole issue of them targeting the MC as they are the descendent of the sole human who received most of “God’s” love (i.eSolomon). Hence, the MC and us, the players, are put under the impression that devils are victims since they are trying to protect their homes while owing them a debt for saving (reviving) Minhyeok.
Chapter 5, however, shows us that this isn’t the case and the situation wasn’t that simple. Though we learn of how the angels used to run a lab to experiment on a large population of devils, including Leviathan and Orias, the devils weren’t completely innocent. When discussing as to why the Seed of Knowledge would be in Tartaros, we learn of how said country used to do just the same as the angels where the devils of Tartaros had previously ran a lab and experimented on angels before Mammon, himself, destroyed it due to the experimentation posing as a threat to his people.
We also see from the two events, Requiem of the Survivors and the Life Investigation of Leraye, how Orias attempts to take Leviathan’s life just so he could consume Leviathan’s soul and obtain long-lasting youth while Astaroth is found by Sitri coming back from the human world after corrupting and ruining the life of a human. We would think the devils wouldn’t be like this as they are introduced as more of a pure and innocent existence especially when, according to Solomon and other devils, they can’t even lie. Based on these events and from seeing in Chapter 5 how the devils of Hades are able to lie, that’s not the actual truth.
If anything, it can be argued their nature and cruelty is almost closed to the angels. The few things that doesn’t make the devils from being on the same level as them is how they don’t intend to assert their race and commit genocide for said goal but exhibit consideration and sympathy towards their fellow and other races. From The Two Stars event, Gamigin’s comic, and Lucifer’s comic, we see how the devils show kindness even towards angels and dragons where the original Gamigin gives his life up to save dragon Gamigin while Satan’s camp and Satan, himself, show neutrality to Lucifer when he first arrived in Hell and takes down his fellow angels. In addition to this, the devils of Paradise Lost choose to follow Lucifer and acknowledge him as their king and “hyung” despite him being an angel.
All of this being said, there’s no “good guy” or “bad guy” in WHB. Instead, we see how war brings out both the good and bad sides of all beings that justifies reasoning for certain actions but not excusing them. There’s also emphasis that the POV of the MC can’t be completely relied on due to bias where they are mostly interacting with the devils on a normal and mutual basis. The concept of moral-grayness makes the overall story all more intriguing as more lore is revealed through interactions between MC -to- characters and characters-to-characters.
Hopefully PB will drop more content soon so we could learn more about the story and characters!