Cheats = to unlock the gallery faster.
As simple as that for those just wanting casual gameplay with an H-game. If it is written and put on top of the main posts the creator writes, such as "When 1.0 is finished and released, then a gallery for people who want to just see the scenes." Something along those lines.
The names change, some characters are different. I respect that a lot of story and hard work is going into this game. But as many people have said before, a lot of this is confusing with the story, and it takes a lot to just get an H-scene.