I'm not entirely sure specifically what 'koneko neko neko visual novel' is about as it could be quite a niche or not widely known one. It might be a visual novel centered around cat - like characters (since 'neko' means cat in Japanese). Maybe it has a story about the adventures of these cat - themed characters in a fictional world.
I'm not sure where you can specifically find 'koneko neko neko visual novel'. It might be available on some specialized visual novel platforms. You could try searching for it on platforms like Steam if it's a commercial and approved title there.
First, give your Neko OC a distinct personality. For example, she could be really shy but have a hidden feisty side that only comes out when she's protecting her friends. Second, give her unique physical features. Maybe she has heterochromatic eyes, one blue and one green, which is rare among Nekos. Also, a special ability like super speed or the power to heal others quickly can make her stand out. And don't forget to give her a backstory that ties into the Highschool DxD universe, like she was an experiment by a rogue devil scientist.
One way is to actively promote positive and clean fan - created content. Encourage fans to focus on things like character backstories, friendship stories, or adventure stories within the Monster Musume world. Also, fandom platforms can have strict rules against posting or promoting sexual fanfics. Moderators can play a big role in keeping the fandom clean by removing any inappropriate content as soon as they spot it.
Yes, the Monster Musume manga has completed its run. All the major arcs and character developments were concluded, providing a satisfying end for readers.
There could be her friends. For example, a more health - conscious friend who tries to encourage her to change her slobbish ways. Or a friend who is also a bit of a foodie and sometimes enables her bad eating habits.
I don't have information on who the author of this fanfiction is. There are so many fanfiction writers out there, and without more context, it's hard to determine the author.
I'm not sure specifically as there could be many different interpretations. It might be a fanfiction where the character Harry has an interest in nekos, which are often depicted as cat - like humanoids in some fictional universes.
A neko visual novel is often about stories that involve cat - like characters, usually in a fictional and often Japanese - inspired setting. It might include elements like friendship, adventure, or romance among these neko characters.