Under the Moon is an 18+otome game released for Windows; possibly the best known of its sub-genre. It is the second installment in a trilogy that also includes Love Drops and Ijiwaru My Master. With art by Toujou Sakana (also known for Detective Conan yaoi fanart), this game spawned a fan disk and a non-explicit PS2 port.The heroine of Under the Moon (default name: Ashe) is the daughter of the king of the demon world. All is not well in her father's domain, however — his power is fading and a succession crisis is brewing. The royal castle comes under attack and Ashe flees with her cait sith familiar (who can turn into a wingedbishonencatboy) and ends up getting transported to the human world. There, Ashe soon discovers that her magical powers have vanished. (Though they weren't much to speak of in the first place.)In no time at all, Ashe and Kyle happen across Leni and Seizh, twin devil brothers with vast magical powers who have been appointed as potential successors to Ashe's father. Neither brother expresses interest in leaving their new home in the human world to take the throne, but they agree to harbor Ashe on account of an ongoing "demon hunt". Angels have declared open season on devils in the human world, leaving Ashe not only unable to defend herself, but unable to go home. Ashamed of her powerlessness, Ashe takes it upon herself to convince Leni or Seizh to become the new demon king.Being a visual novel, Under the Moon naturally has multiple endings, the routes for which are generally grouped into two types: "pure love" and "love/hate". Pure love is just what it sounds like. The "love/hate" routes are rather controversial for fetishizing sexual coercion and domination, and the love interests become bastard boyfriends and yandere.
Tropes used in this work include:
Abduction Is Love: Unan, of all people, whisks Ashe away to keep her from falling for Leni. It's a vague sort of Stockholm Syndrome; Ashe is not exactly his captive, but he is the only person she has to interact with.
Always Second Best: Seizh feels this way in regards to Leni, who always seems to beat Seizh to the things he wants.
Anywhere but Their Lips: In his pure love route Sena avoids kissing Ashe, since he'll effectively enslave her if he does. He's justifiably reluctant to explain this to her, and this denial of affection is hard on Ashe.
Bastard Boyfriend: Love/hate routes turn most of the boys into these, though Sena is the opposite, being a bastard boyfriend only in the pure love route.
Break Her Heart to Save Her: Sena's motivation in his true love paths. He legitimately starts to care about Ashe's well-being, but he knows that if she sticks with him, there's nothing but misery in store for her. So he tries being cruel to her to drive her off.
Break the Cutie: This is the stated intention of love interests with love/hate paths, but Seizh is cutie-breaker extraordinaire. The more deranged he becomes, the more blatantly he treats Ashe like a plaything. In one of his endings, he goes full-on Living Doll Collector and dresses Ashe in a frilly Creepy Doll outfit.
Cain and Abel: Leni and Seizh's Sibling Rivalry is in a sort of ceasefire state at the beginning of the game, but the resumption of open hostilities is likely.
The Casanova: Leni and Seizh both have instant fan clubs of schoolgirls that they pick conquests from. Leni's modus operandi is to use a girl and toss her aside without remorse, while Seizh openly maintains a harem.
Downer Ending: The only apparent requirement for a "good ending" is that nobody dies. The others are loaded with trauma, death, and in some cases, What If? scenarios. Some of the tropes encountered:
Decapitation Presentation — Seen in a disturbing bad ending on Leni's pure love route. Seizh wins a duel with Leni, and brings his severed head to Ashe as proof.
Civil War — Shows up as a 3rd option on Kyle's love/hate route. The twins send Kyle back to the demon world to separate him from Ashe, and he starts a monster vs. devil civil war. Eventually the twins crush his rebellion.
Go Mad from the Revelation — In a Zero ending, Ashe's latent powers awaken and go berserk, killing Leni, Seizh and Kyle. Ashe retreats into self-delusion, unable to cope with the reality of what happened.
The Exile: Leni and Seizh were exiled from the demon world prior to the events of the game when their (first) love triangle with Ashe was discovered. (Ashe no longer remembers this courtesy of Laser-Guided Amnesia.) They've come to like life in the human world though.
Elegant Gothic Lolita: Ashe. Well, she does wear frilly black dresses, and she's a loli if there ever was one.
Forceful Kiss: Perpetrated on Ashe by the twins several times regardless of the route, and always in play in love/hate routes.
Forgotten First Meeting: This Romance Game staple is unusually edgy in Under the Moon. Leni and Seizh have both known Ashe for a long time and they are hopelessly attracted to her, but she has forgotten them (through no fault of her own.) This is a major factor in the bitterness and jealousy the twins feel towards her.
Freakiness Shame: Sena is half-angel, so he has wings. However, they are stunted and misshapen. He only shows them to Ashe in an attempt to repel her.
Green-Eyed Monster: Pretty much every love interest with love/hate paths, but applies to Leni and Seizh in all paths.
Guy of My Dreams: Ashe has recurring dreams of a sad farewell with a man she doesn't recognize. It takes a while for her to realize it's more than just a dream, and indeed, she may never realize who it is (depending on the path.)
Hello, Insert Name Here: Ashe's name is changeable, and the dialogue is recorded in a way to circumvent actually saying her name except for in her own lines, which you can mute separately from the others.
Horny Devils: This trope is an underlying justification for a lot of the game's naughtiness - devils (and mazoku in general) have greater sexual appetites than your average human. They often live for centuries, and thus are older than they appear.
Marry Them All: Yeah, there's a harem ending. It's contrived, as is often the case with this sort of twist, but it's one of the few endings in which Ashe becomes a queen in her own right.
Men Act, Women Are: The plot quickly renders Ashe powerless and dependent on the protection of the men around her. It goes deeper than that too: Because Ashe was the most powerful devil in the demon world until her father erased her memories of Leni and Seizh. In the majority of routes she never gets her full power back and is content to rely on her love interest on a permanent basis. In fact, most paths where Ashe regains her powers lead to tragic bad endings.
The Mole: Sena. He's a half-angel so his dubiousness is readily apparent, but in his paths he manages to win the other characters over. Nonetheless, he hands Ashe over to the angels in the end.
Mysterious Protector: In the first half of the game, Zero appears out of nowhere to bail Ashe out of some tight spots, but disappears just as quickly.
No Name Given: Zero gave up his name when he left the demon world.
Noble Fugitive: Ashe. After losing all her powers, she has to rely on outside protection from the angels trying to kill her.
Our Demons Are Different: A big example of Dark Is Not Evil. Two groups, devils and monsters, live in the demon world. Devils are mostly indistinguishable from humans in appearance, while monsters have some sort of tell, like horns or wings. The demon world itself is depicted neutrally, though it has a rather harsh feudal social structure.
Puni Plush: The art style kind of skirts the line of this, especially in regards to Ashe and Sena.
The Proud Elite: Once you get past the cold, sarcastic exterior, Leni shows a lot of leadership potential. He's decisive, serious, and he projects authority. His bossiness toward Ashe turns outright domineering in love/hate paths, but in the pure love paths he tries to shoulder Ashe's burdens himself.
Your Cheating Heart: Invoked in Zero's routes when Ashe catches him in intimate moments with other women. It's actually subverted. Zero only approaches these women to drain their blood so he can maintain his vampiric powers and keep Ashe safe. On the other hand, the PS2 version has a path that plays the trope straight.