Interstellar Express [Spark] under the Heavenly Southern Gate Project

In 2088, Captain Chen Yu, who started his career in the courier industry, took command of the massive Luan Bird warship to hold the strategic node. Yinglong mechs and Pojun gunboats engaged the enemy across the front lines. The Heavenly South Gate Deep Space Fleet joined forces with the Kaos alien race to fend off extraterrestrial invasion. Leading the entire crew, Captain Chen Yu allied with friendly alien civilizations to defend the vital interstellar passage. Amid the campaign, he uncovered an ancient secret tied to the survival of interstellar civilizations hidden in archaic bronze relics, as all races stood united to safeguard peace across the star sea.