If you want to watch them separately:
Part 1 : • Honkai Starrail react to Honkai Impac...
Part 2 : • Honkai Starrail react to Honkai Impac...
Part 3 : • Honkai Starrail react to Honkai Impac...
Ignite : • IGNITE/Eir Aoi [Music Box] (Anime "Sw...
Outro Music : • Unconscious Requiem/Shinra Banshou [M...