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.
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 OST lineup of " Celebrating the Second Season " included Li Jian, Zhou Shen, Liang Long, Liu Duanduan, Zhang Haowei, and Guo Zifan. They sang songs such as "In My Lifetime,""Excuse Me," and "Aiya." These songs were meant to continue the story of " Celebrating Years " with a melody and bring a new chapter to the audience. " The Second Season of Celebrating the Year " was an ancient drama adapted from Maoni's novel of the same name. It was starred by Zhang Ruoyun, Li Qin, and many other stars. The second season started filming on November 3, 2022, and was announced to be completed on October 17, 2023. It was aired on CCTV-8's primetime slot on May 16, 2024.
Well, 'The Girl in the Trunk' being a Kuroshitsuji fanfic, it might explore unique storylines within the Kuroshitsuji universe. It could focus on a girl's journey or adventure that somehow involves being in a trunk. Maybe it's a mystery - like she's trapped in there for a reason related to the dark and complex world of Kuroshitsuji, perhaps she's a key to some hidden plot or has some special power that makes her situation important.
In terms of plot, these fanfictions might explore different scenarios. For example, a male oc could be inserted into the main storyline, perhaps becoming an ally or a rival to the main characters. This can lead to interesting twists and turns as they interact with Sebastian and Ciel.
I haven't read this specific 'commands and carresses kuroshitsuji fanfic' in detail. But generally, in Kuroshitsuji fanfics, 'commands' might refer to the hierarchical relationship between characters, like Sebastian following Ciel's commands. 'Carresses' could imply a more tender or emotional aspect, perhaps showing a different side of the characters' relationships that might not be as prominent in the original series.