This is an arrangement of a touhou song boss theme. Border of life, ink black cherry blossoms of Suzihimè, touhou 7 PCB (Perfect cherry blossom), final boss' revival theme. Unlucky Morphus remixed/arranged it to produce this banger, and it really shines through.
OK, I'm back with my mission of suggesting another bangers from UM. Maybe this time it's "Angreifer" live turn. This one is so wild and fast too and have a lot of harsh vocals. From the other hand, you can check their latest MV "U Feel Overjoyed" too. Peace :)
If you wanna hear them playing some accoustic songs which is also interesting experience i can link you some stuff (you rather won't find most of it online)