I'm not sure specifically as I haven't read it. But it might be about the events that take place during Christmas at the Mikazuki Villa. It could involve the characters there celebrating Christmas, sharing gifts, and having a jolly time together.
One common theme is friendship. Writers often explore how mikazuki and augus, coming from different backgrounds perhaps, form a bond. Another theme could be adventure, as they might embark on some sort of journey together in the fictional world.
One possible plotline could be an adventure where Mikazuki and Tsurumaru team up to solve a mystery in their world. Maybe there's a lost artifact that they need to find before it falls into the wrong hands.
No, Boruto is alive in the manga. The plot hasn't led to his death. However, the manga is ongoing, and anything could happen in the later developments.
Sure. One great source for mikazuki augus crossover fanfiction could be Archive of Our Own (AO3). There are often various stories that combine these two elements in creative ways. You can search for specific tags related to mikazuki and augus to find the ones that interest you most.
Yes, Boruto is indeed a manga. It expands on the Naruto universe and offers fresh perspectives and storylines. Many fans enjoy reading it to delve deeper into the world created by the series.