It's kind of an immersion thing for me that I vastly prefer my character to have a name I set for them. A nickname is a start, but I'm guessing the dialog box will still have it say "Lucerus" and the main heroines not using the customizable nickname to me kind of defeats the point for me.
I completely understand. Im not explaining it fully in hopes of avoiding spoilers, but the name you chose will be used quite a lot, especially during h scenes. Ill see if theres some way to incorporate your chosen name with the main heroines, maybe in more intimate scenes. However in normal scenes theyd usually refer to you as Lu, unless the context suits it. Thanks for your feedback,it gave me food for thought! ^^