YMMV / Rose Guns Days

• Accidental Aesop: One of the ending's message seems to be if your ancestor did something great, you have to inherit their will and their work, Because Destiny Says So! Cue Julie having the title of Madam suddenly dropped onto her with apparently no option of refusing...
• Audience-Alienating Premise: The synopsis drives many people away, thinking it will be a nationalistic tale where Americans and Chinese are the "bad guys". Actually the story is quite critical on the Japanese mentality, most antagonists are Japanese, and every side has some degree of moral ambiguity, but the setting and themes are still very sensitive.
• Funny Moments: Oliver, Nina and Charles introduction, which has the three of them getting lost because Oliver didn't want to ask for directions, and then Oliver again mistaking an old lady for the "young girl" they were supposed to meet, the three of them speaking very loudly (in a hospital). Add to that Zel watching the whole scene completely baffled and you have a hilarious Establishing Character Moment.
  • Julie's reaction when she realizes Toratsugu has a tad too much information on her private life is just priceless. And just, any scene with Julie and Toratsugu.
• Ho Yay: Quite a bit of it between Caleb and Miguel, especially in the manga. Also between Wang and Meijiu in 1948.
  Wang: "If I win… I want to spent all my remaining time with you by my side, Little Mei."
• Magnificent Bastard: Father Caleb, real name Souhei Keireiji, is the feared head of the Caleb Family mob and the main antagonist of the 1947 arc. A war veteran who seeks to restore a defeated Japan to its former glory, Caleb seeks 100 million Japanese dollars to pay the GHQ to help restore the economy. After teaming up with Club Primavera to defeat rival boss Alfred Akagi, Caleb takes over Primavera and all of City 17, putting a bounty on the Primavera runaways. Caleb uses any means possible, from extortion to murder, to get the money he needs. Despite this, he is well-respected by his men, and he truly loves Miguel and Amanda, his two main subordinates. Nearly defeating Primavera several times, Caleb honorably confronts them in a last stand. After his defeat, he eventually returns to help them fight against greater threats, including the GHQ itself, proving that his loyalty is to the people of Japan first and foremost.
• Moment of Awesome: Basically every year's climax has at least one awesome duel scene for one of the main characters, be it Leo vs. 40 men in 47, Rose vs. Wang in 48, Keith spotting and shooting the sniper who just killed Stella in 49 or Richard vs. Gabriel in 1950, for the most notable ones. Rose vs. Wang has bonus points for being just two people sitting on a chair, talking and passing phone calls and yet still being intense as hell.
• Moral Event Horizon: Gabriel killing Yûji in a horrible way, with a huge smile plastered on his face, just to further his plan would probably make even Takano, Bernkastel, and Higanbana and/or Sumire from Ryukishi07’s other works cover their mouths in horror. Or be so impressed by his cruelty that they’d make him an honorary witch/youkai/sorcerer/whatever.
  • And before that, ordering a massacre on Rose and her friends, killing poor Stella in the process, and ordering any innocents and even American officers to be killed if they get in the way. And Gabriel’s plan in general; when Butler finds out about it, he is horrified.
• Ship Tease: In usual Ryūkishi07 fashion, there is relatively little room for teasing as almost all the couples are already together, but the end of Season 3 slightly teases Wayne and Meryl as they promise each other to "stop being idiots". It's the closest thing we get to a hint as to who Wayne marries after the end.
• Tear Jerker: Stella's death and the other characters' reaction to it. And similarly Meixue's death soon after, which is made somewhat harsher by the tragic absurdity of the whole situation.
• Tough Act to Follow: As 07th Expansion's first post-When They Cry series (barring The Unforgiving Flowers Blossom in the Dead of Night, which has a peculiar format), the work was received positively overall, but the fans still consider that it doesn't quite live to its predecessor's standards, notably in terms of character depth.
• What Do You Mean, It's for Kids?: The manga ran in Shōnen Gangan, G-Fantasy and Gangan Online. While both the anime and manga are far less violent than the When They Cry series, they still have some decidedly un-childish themes such as war, the loss of your homeland, colonization and Chinese-Japanese relationships; and Season 3 features some pretty brutal murders. However, Season 4, as well as the spin-off Aishū no Cross-Knife, appropriately ran in Big Gangan.
• WTH, Costuming Department?: The owner of the bread shop where Jeanne works wears a very... interesting apron◊.