Tell the story before Lu Dongbin became an immortal.

The timid Liang Ruohan entered Siming Women's College in Taiwan in order to find a senior who had helped her. When she first entered the school, she was out of tune with the overall environment. From her classmate Xiaoxi, she learned about the three influential figures of Siming Women's College: Nanfeng, Qian Jiale and Chen Meiling are idols in the hearts of all the students.

A timid but idealistic techie stumbles into a mission with four girls from a parallel world, warriors who can transform into warships, drawing him into a fight over powerful tech and the fate of their world.