Invitation code: I have none.
Link to CG at the end of each walkthrough
Even with the walkthrough, you’ll need to buy some of the MC outfits to get 100% charm and have the Happy Ending. They made the game in a way that it’s impossible to get the Happy Ending without buying outfits. This walkthrough is the same for all character of MBKB, it’s just that some answers are for different characters. You will pass by them all. (Wait, is it understandable ? I feel like I said bs .. Just drop a comment if you want more explanations .. aha)