Yuko Yoshida is a pretty ordinary girl, other than the fact that her family is extremely poor. Until when she woke up one day and found horns and a tail grown on her overnight! Only at this point her mother reveals the Yoshida household comes from a line of demons, and successive defeats over the past centuries made them lose their demonic appearance and cursed them to subsist on 40,000 yen per month for a family of four. Now Yuko has regained some of her demonic features, her family would want her to defeat their mortal enemies, manifested as Magical Girls, and break the family curse.
But years of poverty has took its toll. Due to malnutrition Yuko rather short for her age and is physically weak. On the other hand, Momo Chiyoda, the local Magical Girl, is well-versed in combat. How will the situation turn out for Yuko and Momo?
The Demon Girl Next Door (Machikado Mazoku) is a yonkoma manga by Izumo Ito, serialized in Manga Time Kirara Caret. It received an Animated Adaptation by JC Staff in July 2019. Outside of Asia, the animated version is licensed by Sentai Filmworks and streamed by its streaming service HiDive.
The Demon Girl Next Door contains examples of:
- Big Red Devil: It is implied that demons originally look like this, but centuries of having their power sealed by the Light powers caused them to take a more humanoid appearance. Yuko's sudden growth of horns and tail is seen as some restoration of her demonic powers.
- Calling Your Attacks: Momo's Magical Incantation is "Fresh Peach Shower!" She finds it pretty embarrassing.
- Catchphrase: Yuko's "Don't think this means you've won!" Momo borrows it after Yuko takes some of her blood.
- Edible Theme Naming: All the Magical Girl in this series have names taken from a fruit: Momo (peach), Mikan, Sakura (cherry), and Honyu (Alternate Character Reading of the Jonathan apple).
- Embarrassing but Empowering Outfit: Yuko's Crisis Management form is embarrassingly Stripperiffic, but it does raise her normally pitiful physical abilities.
- Empty Fridge, Empty Life: Momo's empty fridge sadly matches her empty house.
- Ill Girl: Apparently Yuko prior to growing her horns and tail. Her friend Anri mentions that Yuko often had to leave school early or miss it entirely because she was in the hospital so much.
- In-Series Nickname: Yuko's epithet "Shadow Mistress Yuko" gets shortened to "Shamiko", and eventually she is known under that name, sometimes more than her actual name.
- Istanbul (Not Constantinople): The author just changed the toponym 多摩 (Tama) to the very similar 多魔 (same pronunciation). This doesn't only apply to the city where the cast lives, but also Tama River, the river that flows through the city, and Okutama, a place Yuko ended up during the second episode.
- Magical Girl: Momo, and a powerful one at that. Her first appearance in the series involves stopping a truck to avoid Yuko falling victim to Look Both Ways.
- No Communities Were Harmed: Based on the toponyms the story is set at the Tokyo suburb of Tama. The author swapped a kanji for the Punny Name effect.
- Perpetual Poverty: As a result of a curse put on the Yoshida household, they have to subsist on 40,000 yen a month. On the day Yuko's mother revealed their demonic origins, they have ran out their rice supply for the month, and miso is intended to be their sole food item for awhile. This is also why Yuko lacks knowledge on usual grocery items.
- Punny Name: The author swapped a kanji from the real-life City of Tama (多摩市) to 多魔市, or "City of many devils / demons."
- Reality Ensues: The added weight of Yuko's horns is hell on her head and neck.
- Red Baron: Yuko's mom chose "Shadow Mistress Yuko" as Yuko's epithet minutes after confirming the latter has some demonic powers restored. Yuko finds it incredibly lame.
- Refusal of the Call: On the night Yuko gained her horns and tail, a demon asked her to "wake up" but Yuko refuses. She still received "the Call", nonetheless.
- Rose-Haired Sweetie: Momo is a heroic Magical Girl who helps and trains even her rival Yuko.
- Transformation Is a Free Action: Parodied. Momo's long transformation has a timer to show it only takes .01 of a second, later bumped to .008 of a second.
- Unskilled, but Strong: For a Magical Girl, Momo is actually not particularly good at magic. She remedies with physical force, which is why she is often seen in gyms.
- What You Are in the Dark: Yuko realizes she could easily take Momo's blood while she's sick, but decides that'd be wrong to do. She ends up doing it accidentally anyway while treating a wound.
- Yonkoma: Its format.