This is THE exhibitionism game.
There is an insane amount of customization for your character, from clothes, to body proportions, poses, toys, locations, time of day, and handicaps. Most of this slowly unlocks from adequately paced progression as Manaka gets bolder and bolder. The basic coat itself (which the game uses to determine actual flashing) often conflicts with your outfit, but I don't really have a solution to this.
This game does a very good job of immersing the player as if they were the one doing the challenges. The heartbeat, alongside NPC behavior and sometimes luck makes the game as challenging as you want it to be.
There is sex, but the sex is barebones, which to be fair, this is mainly an exhibition game. One other issue I have is the point gacha for the stats of an item (which can give you small buffs or nerfs). For this, I just edit my save file to give the items the stats I want.
Even though I have finished the game, I find myself coming back to try out new costume builds or challenges. I also hope the mod scene keeps this game going. Overall, an industry standard with ample replayability.