These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Some fans are pointing out that they're tired of the constant displays of the corruption of the Empire, claiming that it's done for "shock value" in the same way a Snuff Film does.
Broken Base: Kurome started off as mostly a boring character no one was really interested in, but then garnered a lot of hate for what she did to Chelsea's corpse after killing her off. Later on, she starts showing a much more loving side to her through major Ship Tease with Wave, but some fans just can't bring themselves to forgive her.
While Mein already had a lot of fans, supporters of the Tatsumi/Mein ship exploded in number after Mein's battle against Seryuu, where Tatsumi rescues Mein from Seryuu's Taking You with Me attack. And then they became an Official Couple in chapter 45.
Tatsumi X Esdese holds a strong following amongst those who still hold out hope that at some point down the line, Tatsumi will reform her.
There is also Wave X Kurome although fans see it unlikely to the several death flags.
Holy Shit Quotient: When you're first reading through chapter 1, it starts off looking like a fun, innocent, adventure following Tatsumi's escapades around the capital city and landing a job as the bodyguard for a cute rich-girl. After that...
Memetic Mutation: Prepare to see forums involving the word "deathflag" due to the large amount of major characters dying.
A translation of the title: Akame Kills!
Moral Event Horizon: Due to the dark nature of this manga, there are sure to be many, be it major-characters, side-characters, or even background-characters, that have crossed this point. The more famous examples being:
The woman who shelters Tatsumi in the first chapter; being discovered to have tortured to death the people she brings to her home; including the two friends Tatsumi was traveling with prior to the start of chapter 1.
Seryuu's brutal murdering of Schere.
Team Wild Hunt raping and killing Bors' wife and child on his grave.
Nightmare Fuel: Oh boy where do we begin? The tortured people from chapter 1?
No character (at least before team Wild Hunts introduction) receives more hatred amongst the fandom then Seryuu due to her psychotic sense of "justice" and for having practically no redeeming qualities to her character outside of looking cute when she's not in her insane nut-job persona, and being the cause of Schere's brutal death certainly won her a lot of hate. No one felt an ounce of remorse for her when she kicked the bucket in chapter 38. In fact, its one of the most loved chapters of the manga!
Shura and his team Wild Hunt members shot up to this status instantly the moment viewers had to read through their brutal murderings of Bors' wife and child in chapter 46.
Villain Sue: Esdese. Never mind being the most powerful fighter in the setting, she most exemplifies this trope effortlessly beating half of Night Raid and then freeze frigging time to stop Susanoo from killing Night Raid's target. No repercussions, nor anyone capable of beating her are in sight as of Chapter 42.