OPENING AND SETTING: You are a school girl who finds a weak succubus that asks for your strength, in return you make a contract with her to take part in a Hunger Games 'only 1 can survive' war between 100 people. This is part makes you a succubus, and now you must train to win against the other 99 people or be erased from reality. The only odd note here is that you have a hospital scene with your younger comatose brother around this point and this has no relevance on the game until the very last scene, which is weird because you as a succubus will be going into people's dreams to fight monsters and get some H-scenes.
THEME AND WORLD BUILDING: The game does a fairly good job with selling the point that you are a succubus. Where other games would just say, "Well I have to do this" to get the girl into doing H-scenes, this game does at least have that extra context that she has to get stronger by fighting AND by being a succubus. Not to mention, you do things like go into people's dreams on occasion to have sex with them, use your charm to attract men to you, and other things which do help sell what you are.
As for the world, this is a well made world of places and people, which might mean nothing to some, but it's worth saying since some games are just 3 huts and 4 NPCs that just have settings options. You get to see small areas that represent the general area you are in, so you are very rarely running through large areas, good for both gameplay and world building.
GAMEPLAY: During the day you will have the ability to run around the world, taking part in events that slowly make your MC more and more lewd. At school, you are a part of committee that are basically just hall monitors, so it's up to you to keep up the moral of the school, cleaning trash, putting up posters (which can be lewd posters of the MC the more scenes you see), and returning lost money. Outside of school, you can take jobs that can become more and more lewd as you try to get money. At night, you go to sleep, where you have the choice of going into someone's dream or going to the Succubus City. Really, just think it more like teleporting than going to sleep. The dreams of other people just have basic RPG enemies for you to defeat, maybe a couple items to find + a boss at the end of the dungeon. The Succubus City has about a dozen+ NPCs, who will have different things to say as the story continues. It also has the dungeon that will be training in with lewd monsters trying to battle fuck you and trap gauntlets to get through. The battle fuck part of these does feel weak compared to other games, only having 1-2 standing CGs. Some monsters do have a H-scene but that's just a H-scene if you lose on that floor of the dungeon, not a monster specific H-scene. It is also worth mention that there are Bad Statuses in this game, but not implemented like games that focus on Bad Statuses. In this game, they are just % damage increases and a couple small effects that doesn't really change your gameplay, which is what Bad Statuses are suppose to do.
H-SCENES, FETISHES, AND ART: Most of this game has a VERY heavy emphasis on exhibitionism, exposing yourself in public, and voyeurism. Even scenes that aren't specifically aimed at exhibitionism still have many lines referring to the MC getting horny and wet just from being looked at, the thought of being caught, or having rumors spread that she is a slut. There are some other fetishes like hypnosis, possession, and light watersports, but nothing too far out there. There are a couple scenes that are briefly animated, all scenes are voice acted, and the art is well drawn, which is all really nice. My disappointment comes from there being over a dozen monster you fight, but barely any monster H-scenes. Like, there is one scene with living clothes, and another with a living tightrope tentacle walk, but that's as far as that goes. You do get a good variety of outfits to see the MC in, and a lot of H-scenes even change based on what you are wearing, which is something I really wish all games would do, otherwise the outfits might as well be flavor text. The H-scene collection room is in the Succubus City, and is even contextualized as the memory for the MC which all of the Succi in the city can freely see, which is a nice touch. If you lose a fight to one of the other fighters, you briefly enter a 'Bad End' explorable game where you are under the thumb of the person you lost to, which does give you much more hardcore H-scenes earlier than you would other see similiar H-scenes, but you will get right back on track in the story after beating the person you lost to.
CHARACTER AND STORY: There isn't much to say about the characters as they don't stick out or do anything you don't expect, which is all you really need for an H-game. The MC is a chaste yet outgoing girl who is corrupted into doing more lewd things by her supporting cast, the succubus who gave her the powers she now has, a pervy world around her, and of course a tanned guy with blonde hair who can blackmail the MC. Nothing out of the ordinary. The story does have more going on as the game continues, people who come out as players in this 100 person war, backstories and conflicts, good stuff to how deepen what could be a flat and linear game. Like I said at the top, there are some weak story telling parts like the brother who doesn't exist for the whole game until the story needs to use him, some people who are a part of the 100 person war who just feel like the story needs them to be surprise twists, but otherwise the story isn't bad.
Overall, this is a very satisfying RPGM game about becoming a succubus with a heavy focus on exhibitionism