The raw version of Yuru Camp manga can sometimes be found on some underground manga-sharing communities. But I have to warn you that this could involve legal risks and also isn't fair to the artists and publishers. Your best bet is to look for legitimate ways to access it.
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.
Liu Yuru wasn't the Empress in the Long Wind Crossing. Liu Yuru was the daughter of a cloth merchant. She had experienced family difficulties and marriage twists and turns, but she showed strength and wisdom in adversity. She was favored by Gu Jiusi to become the Regent Empress, but she did not become the Empress.
Liu Yuru was not the Empress. Liu Yuru was a character in the TV series " The Long Wind Crossing." She was the daughter of a Yangzhou cloth merchant. There was no mention of her becoming the empress. Therefore, Liu Yuru was not the Empress.
Liu Yuru got pregnant in the tenth episode of the TV series " The Long Wind Crossing." She was pregnant with Gu Jiusi's child, a boy and a girl. The news quickly spread and the entire Gu residence knew about it.
OST was the shortened form of original music, which referred to the music used in movies, TV series, games, and other media works. It included scores or songs from movies, as well as music from anime. OST was usually released in the form of an album for the audience to enjoy. It could be released as an independent piece of music and receive independent attention and recognition.