The MC lived at Guillotine City, part of Japanese claimed territory on planet Mercury, city bustling with neon light, drunkard, choked with gas pollution, putrid smell of trash and gutter, no sunlight shine through and most people miserable. The year is 5029 AD, year of space exploration where people have the power to terraform inhabitable planet and live on them. It make sense since most of Earth landmass has been flooded by climate change, with select few still own land and other submerged. To counter this they build ocean dome under the sea, make do with what they have. For the most part, human thrives but conflict still arise from difference in political and religious ideology. Back to Guillotine City, residents expressed themselves in unique "Avatar", a technology that change their appearance in real world by bending the light around them. All in all the setting is rich in story building that is truely unique for a H-game. This is backed by strong cast of character, either main or side character.
There is array of unique characters like a perverted goat but your best bro, a girl who love to joke and tease you but caring, a genetically modified girl to be like a succubus, a childhood friend who is quick witted, a mysterious detective girl who carry you through story, and of course the sweet rabbit maid who hold you dear. Not to mention the unique side character, a Cthulhu, a Ladybug, a vomiting worm, a mechanical cat, and even characters from past game. They have their own story that dive in tragedy, guilt, regret yet can end with fun and new resolve at the end of their character arc. All connected to detective like gameplay culminating till the end of the game, as their story develop both MC and Meca-nica character.And the story is about investigating the culprit, the why and how they done it; about universe ending event as you trapped in 3 days timeloop.
As for music, it is just superb. With around 149 royalty free music and only 1 composed song, but all of them are amazing at their own right. Music play big role in the game, as MC is a musician.... a magic musician at that. He play music to ease people worry, to swim in nostalgia, to rock and have fun, to grief, and to release frustration and anger. His magic music can directly effect people feeling, or more like connect MC feeling and the audience. This tie in gameplay form as you need to choose correct music to pass through character event, solving their problem. It is rare a song to be so catchy that it linger in my mind... but yet it does. That speak volume of how good the musics are.
Granted I can't go through without mentioning the flaw... Otaku Plan is known to be mediocre to "just okay" job in translation and this is no different. Some words are DIRECT translation without nuance, broken grammar, typo and sentences that doesn't make sense pervaded the game. But it should be enough to get you understand the story because much better than broken MTL. Not fault of original author. As for the H content, the art is very beautiful. Made mostly by 9kv_lan that show talent in drawing erotic art. The H content are 27 base HCG, with changes depending on your affection level, including handjob, fellatio, footjob, pet play, breastfuck, hypnosis, exhibition and tons more. 30 sexual harassment scenes as well, with cut-ins including crotch-showing, receiving verbal abuse, head patting, finger licking, ass-touching, and more. The harassments scene tie to gameplay as it is needed to restore POWER, a consumable point to use magic music or it is game over if below zero. However you can only harass as far as Loyalty point allow you, which can be restored by certain events and Meca Nica interaction. The Loyalty is capped as high as Affinity, a value that is also increased through events. This all is further restricted by 5 time point per day, which consumed after events. In 3 days loop that is 15 total but don't worry the events will have popup before activation that tell you its reward so you can plan what event to activate. There is also no limitation on how much you can timeloop and you can skip event after timeloop with cost of 1 time point and 2 POWER.
Regarding the graphic... it is just detailed, beautiful and capture the cyberpunk setting well. Kuroki responsible for most background art, Mutabi Arasaka drew breathtaking concept art, Yoshiko Yoshioka do amazing event CG. All directed by Zenzunagi who do mostly background art and 8bit pixel map. Most character idle are animated. They all manage to bring life to world of Mechanica with how limited RPG Maker is. Overall the game is incredible to play through just for the story, even if you dislike it as H-game. Recommended to play this game. I guess my only gripe is its translation need to be fixed so player has better understanding of the quirky character and endearing story. Even then the game is amazing by its own.