Anime Crossover: Ultraman Ginga from the Start

I thought this cover was for the heroine.

Why do I feel like I have read this book? [What][What][What]

More heroines or no heroines? The writing is very warm and beautiful. Hope you don't run away

Multiple heroines or single heroine?

When I looked at the cover, I thought it was a female protagonist, but it turns out it's not. But it's okay and pretty good-looking. However, according to the author's message, it should be finished soon.