This looks more or less a ripoff from Huuma Mina: The Secret of Immortality. The area i see on those screenshots looks like a 1 on 1 copy from the headquarter area and even the same kind of bondage. Only the characters are different and the menu. Wonder if dev got permission from Hajime Doujin Circle.
Hate to break it to you but just because one game has a city map and bondage its not a "ripoff" of another game that has a city map and bondage.
Since you did not play the game let me tell you this:
This game is a First Person Shooter with no real story. It has many more maps than the one shown in the Screenshots (a total of over 20 unique maps like arenas, spaceships, a school, a city and a Wild west setting. Even more if you count the size variations). It has different Gamemodes (Team deathmatch, Survival, Battleroyale, Zombies, an escape game mode and "Space Pirates"). And the bondage does not consist of just tying someone to a light pole (you get to strip and punish them, get to choose the restraints and poses).
Huuma Mina is a story driven Third Person Beat em up RPG (no guns here). It is set in a City and its underground (I think saying that it got 10 levels is kinda high balling the number). This game has only the story mode, once you played through it then that's it. It recycles many bondage animations from the previous games made by this Circle and does not really offer that much interaction with the bound enemies (except maybe a bit of spanking).
All in all saying that this game "ripsoff" Huuma Minas like saying that a Tequila Sunrise is ripingoff Water. Yes, there is also Water in the ice and the Orange juice, but there is a lot more going on there that makes this completely different.
Thank you for coming to my Ted Talk about "knowing the difference between plagiarism and just looking kinda similar when you go completely cross eyed".