Trouble Days is an Eroge Visual Novel developed by qureate and iMel Games, released for the Nintendo Switch and Steam platforms censored, the latter having an official patch that adds the explicit, uncensored content.
Lovelia is a succubus on the hunt for her first man to extract their technoforce, with you, the Player Character, being her chosen target. Unfortunately for Lovelia, her anxieties due to her adversity to men has made their goal fall short. And with her unable to return to the demon realm until she gets a man's technoforce, Lovelia asks to reside in the protagonists home until then. Thus begins Lovelia's life in Akihabara, growing past her anxieties, learning of humanity's culture, and possibly of a certain thing called love.
This visual novel provides examples of:
- Book Ends: At the beginning, there's the sound of screeching cats outside of the protagonist's apartment, later revealed to be caused by Lovelia presence. In the "Maidenless" ending, an amnesiac player character, upon waking up in the middle of the night, finds a black cat waiting outside his apartment building, but with no Lovelia.
- Does Not Like Men: Lovelia, as her feelings about them range from at best having an adversity to close contact, to at worse seeing them in her fantasies as cruel assaultors. This behavior stems from Lovelia reading/watching Hentai for her research of humanity, painting the general misconception of men as sex-on-the-mind Jerkasses. Downplayed, as Lovelia grows to find the protagonist as the exception (moments of projected fantasies notwithstanding), and grows out of this further on.
- Downer Ending: The "Maidenless" ending. After searching all day for a heartbroken Lovelia, the player character decides to cut his search short under the belief that she'll return of her own volition. Lovelia's supervisor reprimands him of this as he sleeps, with her erasing all of their memories of Lovelia after all is said and done, the protagonist no longer finding a girlfriend and Lovelia remains tearfully all alone.
- Hot Springs Episode: On the vacation trip post-kiss, Lovelia and the protagonist go to a public onsen to relax, with some complications (Lovelia being groped by some innocent girls and having her voice projected into the male exclusive onsen) that made it hard to relax. Luckily as it turns out, the motel they're staying at has their own private onsen baths, with the couple subsequently making up for the squandered trip.
- Meaningful Name: The main girl is called "Lovelia", which sounds close to "lovely", something that best describes the girl in both the eye-candy sense and being a genuine sweetheart of a succubus.
- Minimalist Cast: While there are plenty of side characters featured throughout the story — including the workplace boss, several co-workers, a camera guy, Lovelia's supervisor, the protagonist's mom, and the childhood friend — they all exclusively appear in dialogue and not in physical appearance, nor given names. The only characters that fit the criteria most don't are Lovelia herself and the protagonist.
- Multiple Endings: There are three different endings, altering the sequence after Lovelia learns that the protagonist's mother wanted to arrange a date with their childhood friend and running away with the protagonist following after her, which is determined by the chosen dialogue options:
- Generally choosing the first options for all choices results in the "Normal Ending", after searching for Lovelia well into the night, the protagonist would go back home to find Lovelia return... but in her "attack mode" mentality, forcing herself onto the protagonist and implicitly draining them of their technoforce, turning them into a submissive puppet. While their relationship was salvaged, it came at the cost of both parties losing themselves.
- Choosing the secondary options, which includes "Lovelia has to leave" at the beginning, results in the "Maidenless Ending". The protagonist's overall apathy leads to them giving up on their search for Lovelia at their emotional low point, leading to them having their memories of Lovelia wiped clean by her supervisor.
- Choosing all of the first options, except for the sixth choice, results in the "Happy Ending", where the protagonist learns that Lovelia has chosen to go to where she had her most happy memory: the inn at the vacation spot, with the protagonist subsequently going there to reconcile with the succubus. In the following post-credits scene, the last encounter with Lovelia's Supervisor "punishing" Lovelia for her crimes as a succubus, turning them human and giving her the papers to be a proper human citizen, allowing her to be free of the weight of her prior species and live a happy life with the protagonist.
- Not Himself: If a succubus is left deprived of a man's technoforce long enough, their personality takes a shift into "attack mode" as a survival instinct, indicated by a shift in personality. While the first kiss with Lovelia implied this has taken effect, Lovelia the next morning insists that they were in control the whole time. In the "Normal Ending", this personality manifests in Lovelia, with them not being the innocent and meek succubus anymore or ever again. The protagonist also ends up losing themselves following their technoforce being drained by her.
- Reluctant Fanservice Girl: Despite being a scantily-clad succubus, Lovelia has moments of embarrassment over her unintended nudity. Such as her first demonstration of her disguise ability leaving her in undergarments, or the Wardrobe Malfunction incident detailed below.
- Unusual Euphemism: Taking someone's "technoforce" sounds like a roundabout way for taking one's virginity, though Lovelia further explains that it need not be the deed — even just kissing will suffice.
- Unusually Uninteresting Sight: While Lovelia undoubtedly draws attention with both her behavior and her ensemble of clothing, most other characters don't take note of her obvious succubus features — her wings and tail. While it's implicitly possible that Lovelia could simply hide those features from view, she doesn't, with it being handwaved as others interpreting her as a cosplayer in a city where that's commonplace.
- Wardrobe Malfunction: A magic-based variant with Lovelia's cosplay; one guy who wanted a picture with her ended up causing her disguise to come partially undone when he tried to reach his arm around her, with the succubus' panic response resulting in a flash of light and her top exposed.
