
Synopsis: (what i understand as a reader) Angel Gabriel made a bet with Angel metatron if he could make seraphim a fallen angel living in hell, fall in love with Meta then gabriel will sleep with him (real angels don't sleep with each other it's just fanfiction)
The task looks like to bring seraphim back to heaven (Ordered by Lucifer & Gabriel works for Luci) thus that's the bet.
Meta goes to hell & he sees him bullied & injured so he gave seraphim part of his powers to judge his bullies & bring him to justice which Sera made use (seraphim's power are borrowed from Meta & when Meta was looking into his memories to know who created this fallen angel , his inner demon (mother) doesn't want him to leave hell so she makes seraphim use Meta's borrowed powers & hit Meta. She absolutely does not want Sera leaving hell & when Meta tries to kill seraphim his sword breaks by his own powers protecting seraphim & he gets hurt; Seraphim is also hurt but the snake pet uses its blood to heal him ) & thus injured Meta is recuperating in his cave for now
There's a short scene of Gabriel & lucifer talking about hurting seraphim but unable to accomplish it even if they sent many angels to kill him. & Now Sera's inner demons has got metatron powers in Sera's body so it's a failed task thru & thru cause tbc...+-+
Seraphim saw Hell's debauchery & is slowly lusting after Meta, Oh he also calls him GaGa cause Meta gave him Gabriel as his name.
Seraphim can change his form from a kid to adult based on his mood. Anger & lust makes him appear older (so far so good)
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Continued:
Deputy Lord: Micheal. Interchangeably Lord Metatron (the strongest angel) vs lord Lucifer.
And Seraphim here has Micheal/Metatron's powers so he's stronger than Lucifer's angel soldiers. Defeating them as well as preventing Micheal/Meta escaping back to heaven. That's the fanfiction plot I think.
Some bg about angels. Seraphim is a category name of angels that are really strong & can fight Lucifer. Their powers are fire that's why red hair. Yet the strongest is Michael/Metatron & Luci is jealous of god's worship & wants that throne for himself. So his powers are distracting human kind from worshiping God & creating unforgivable sins. That's why he is the most beautiful angel here. +-+-+-+
Prologue(ch1) shows that seraphim is obsessed with metatron later & binds him with chains & what not. Metatron/Micheal seems to have lost his memory too. Meaning they must spent eons together & he's still thinking about escaping. Poor Metatron.

Seo Hyun : A walking trouble magnet is what he is lol I hope bottom can finish whatever job he's supposed to do (its s2 and I still couldn't figure out, (His yakuza family doesn't allow drugs in his area and they're fighting in the neutral territory where his family is angry for someone else selling drugs?) is that it??).
Top is naive but he has financial responsibilities for living abroad and his family back in Korea so i understand his nature a bit. It looks stupid but he's pretty brave for working there I hope he hits the lottery soon and not worry about money anymo. Don't forget Hyeooh's uncle threatening him , blackmailing him with Hyeooh's life so it's all okay It shows he cares more about him than his safety

The expressions drawn on MC's face or all the characters except ML are amazing. idk why ML expression seems like drawn by a complete different artist from MC & other's artist . Stoic 99% of time meanwhile MC gives complex emotions on his face in each panel he's in... Could be only me but i want consistency in all their human emotions not excluding ML , it could also be that he's calm lake during the constant storms bro is Sigma ultra pro max
Wasn't expecting a masturbation before actual sex WTF this arc is wild