The answer is: "OST song" refers to the song in the OST. OST referred to the original music in movies, TV series, and other film and television works, and the song part was the OST song. According to the search results, some OSTs of movies and television works included some songs, such as the theme song of the TV series OST of " A Thought of Passing Mountains," many of Zhou Shen's OST songs, and Yu Kewei's Top Ten Classic OSTs. Therefore, an OST song referred to the song part of the original music in a film or television work.
One of the best SNK fanfics could be those that focus on the backstories of the characters. For example, a fanfic that delves deep into Levi's past before he joined the Survey Corps. It might explore his life in the underground and how he developed his combat skills. Another great one could be about Eren's internal struggle in a more detailed and alternative way than in the original story. There are also fanfics that explore different relationships between the characters, like a friendship - centric story between Armin and Mikasa that shows their bond growing in unique circumstances.
One characteristic could be its unique art style. SNK is known for its distinct visual aesthetics, which are likely to be carried over into the visual novel. Another might be its storytelling. It could potentially have complex and engaging plots, perhaps with elements of mystery or action.
The OST lineup for the second season of Celebrating Years had already been announced. Among them, Li Jian sang the theme song " In My Lifetime," Zhou Shen sang the ending song " Excuse me," Liang Long, Liu Duanduan, Zhang Haowei, and Guo Zifan performed the promotional song " Aiya." These songs would bring more musical elements to the second season of " Celebrating Years," adding more emotions and atmosphere to the plot.
The characters in Andou Hiroyuki's visual novels are usually very well - developed. Each character has their own personality, backstory, and goals. This makes them feel like real people rather than just fictional characters. For instance, a character might start off as shy but gradually become more confident as the story progresses. And the relationships between the characters are complex and multi - faceted, adding more depth to the overall story.
As I don't really know his works specifically, but in general, light novels often have simple and easy - to - read language. So perhaps Hiroyuki Hiro's light novels also have this feature, which makes them accessible to a wide range of readers.
One common theme is power struggle. When characters from different universes meet in a crossover, they often have different levels of power. For example, in a crossover with a superhero universe, the SNK characters might have to deal with the much greater powers of the superheroes, leading to a power struggle.