Short review:
There are few examples of a really good 18+ game from a first-time developer with solid mechanics and a story which is actually readable instead of being used as a tool to service the sex scenes, this game is one of them. The only other examples I'm reminded of are Isetan and 浮遊都市の作り方-空飛ぶ風俗都市運営はじめました!-, the latter has since gone on to make one of my favourite doujin games and is working on a third game right now.
There's a decent variety of sex scenes and situations, ranging from prostitution to game-over rape and even exposure play. Creator hired a lot of guest artists for this game and it shows, but the main character is well drawn and the scenes are well done with HQ animation at a decent resolution. If there's one gripe I have, it's that the exposure play stops at Sumata, which the creator seems to have a particular fetish for. I suppose there's monetary and technical restrictions in not going for full-on penetration sex scenes a la the Naked Order series, but if the game sells well enough maybe additional content will be made to address this gap.
As for the storyline, it's a blatant parody of the Sentai franchises popular in Japan, but with a twist as the protagonist is playing the newly appointed boss of the enemy organization opposed to the Sentai. In addition, the Sentai themselves have let power go to their heads and are really the villains in the story despite of their public persona. There's plenty of humour in the character dialogues and lots of cheese thrown in, but it's an enjoyable read and there's satisfaction in making it to the true end and seeing everything wound up satisfactorily.
Gameplay wise the mechanics are much the same as standard 18+ JRPGs, only with the addition of a stamina bar which restricts how many actions players can take in one day. Other stamina-restoring measures exist, but there's a limit to how far they can stretch a player's day what with the stamina costs for each mission and the various map encounters available. Grinding isn't really a chore here, since XP comes quite easily and there's a gameplay mechanic which allows players to quickly level selected characters using a different currency to the followers. The battle system is also well explained, although not the most original. Predicting the outcome before a round begins in the turn-based battle system allows players a lot of flexibility to come up with the best strategy to win. The balance is spot on, especially if players are diligent with collecting the various equipment upgrades on offer.
It took me longer than I wanted to see everything, but players starting out should finish the game, see all of the content and unlock all of the sex scenes with a full day's worth of playing time.
, then change clohtes and defeat him
