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.
Blade Fangs was a Japanese manga created by Itagaki Keisuke. There were four works in total, namely Grappler Blade Fangs, Fanma Blade Fangs, Blade Fangs Path, and Blade Fangs Path 2. The theme of this manga was hand-to-hand combat, and it told the story of the young Blade Fang fighting with strong enemies in various underground arena competitions. The characters in the Blade Fangs series had distinct personalities, compact storylines, and unique styles. This series of comics was well-known in China and was welcomed and loved. The animated version of Blade Fangs also had two seasons and could be watched online. As for the viewing order of Blade Fangs, they could be viewed in the order of Blade Fangs 1, Blade Fangs 2, Fanma Blade Fangs, Blade Fangs Path, and Blade Fangs Path 2.
The levels of One Sword Dominance were as follows:
Azure Heaven World: First Grade Body Tempering Realm, Second Grade Power Tempering Realm, Third Grade Internal Strengthening Realm, Fourth Grade Dual Cultivation Realm, Fifth Grade Unresting Realm, Sixth Grade Qi Transformation Realm, Golden Body Realm, Qi Controlling Realm, Void Realm, Ethereal Opening Realm, Divine Union Realm, Ten Thousand Laws Realm, True Ten Thousand Laws Realm, Controlling Law Realm, True Controlling Law Realm, Void Breaking Realm, Origin Realm, Yin Realm, Supreme Realm.
Four-dimensional Universe: Saint Realm, Creation Realm, Dao Realm (Primordial Dao Realm, Knowing Dao Realm, Dao Validation Realm, Dao Mastery Realm, Heavenly Dao Realm), Emperor Realm (also known as Emperor), God Realm, End Realm, Half-step Sealed Realm, Sealed Realm, Half-step Unknown Realm, Unknown Realm, Extreme Creation Realm, Earth Immortal Realm, Life Realm, Life Breaking Realm, Dao Seeking Realm, Dao Entering Realm, Dao Breaking Realm, Dao Destruction Realm.
According to the information provided, the realm of One Sword Dominator was divided into two major categories: the Azure Heaven World and the Four-Dimensional Universe. The Azure Heavens World included the First Stage Tempered Body Realm, the Second Stage Power Realm, and so on. The highest realm was the Supreme Realm. The four-dimensional universe included the Saint Realm, Creation Realm, and so on. The highest realm was the Dao Destruction Realm.
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.