- Acceptable Hard Luck Targets: The Unused Character is this.
- Base-Breaking Character: Sonya, with the fans being split between those who consider her as a total Jerkass who doesn't like being with Yasuna and the fans who think of her as someone who is just bad at being overall nice.
- Ear Worm:
- Ensemble Dark Horse: Agiri's anime incarnation has gained a significant fanbase due to her voice alone.
- Sonya being Russian is one of the most common headcanons, if not the biggest of them all. The creator has never confirmed it, yet most fans consider it as true.
- Fountain of Memes: Has become this in Japan.
- Fridge Horror: Some -if not most- of Sonya's beatings on Yasuna are downright disturbing for slapstick comedy standards. Take Episode 9 for an example, when Sonya repeatedly whips Yasuna with a fishing rod like an abusive spouse.
- Hilarious in Hindsight: Fans occasionally joked that Agiri was The Stoner. Then in 2015, her voice actress, Ai Takabe, was arrested for cocaine possession. After the incident, cocaine jokes have become much more frequent.
- Ho Yay: It's from Manga Time Kirara, so this trope is obligatory. Most notably with Yasuna.
- Memetic Mutation:
- Yasuna's "Nice desu ne!" has become a minor meme.
- The ending song's dance and the first manga volume's cover. Both Sonya and Yasuna are edited into other characters who are friends, enemies, siblings, etc.
- Tonka trucks.
- A panel from chapter 70 taken out of context has become somewhat of a joke.
- The comment sections for the newer manga chapters as of 2019 are full with remarks about character deaths and saying it's the final chapter.
- Most Wonderful Sound: Agiri's voice. Her voice in the English dub (courtesy of Rozie Curtis) is also very pleasant to hear too.
- Ships That Pass in the Night: Fans often ship Agiri with the Unused Character, despite the fact that the two have never had any real interaction in the show. Hell, the jury's still out on whether or not UC even knows Agiri exists!
- Spiritual Adaptation: The series might perfectly be a licensed parody of Lyrical Nanoha. The sheer premise of "stoic girl with blonde hair in twin tails and black ribbons who works as an enforcer has a cheerful, brown-haired, more mundane female friend who saw the darkness of her work and thus attempts to bring the best out of her" should ring all the bells.
YMMV / Kill Me Baby