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.
In a post - apocalyptic fictional story, there could be a group of survivors who get stomach rumbling and diarrhea after eating some contaminated food they found. This would be a big problem as they are already in a difficult situation. Some of them might think it's a new virus or something, while others would be more concerned about finding clean water and proper medicine. It would create a lot of internal conflict within the group and also make them more vulnerable to outside threats.
Well, in a fictional adventure story, a traveler in a strange land could get stomach rumbling and diarrhea from eating an unknown fruit. This would then lead to a series of events like seeking help from the local tribes, who may or may not be friendly, and it could be a turning point in the story, either making new allies or facing new enemies.
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.
I'm not entirely sure as I haven't read it in detail. But generally, a visual novel often involves a story with characters, plot twists, and multiple endings. 'Rumbling Heart' might be about relationships, emotions, or personal growth of the characters in the story.
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.