[EVENT ENDED]Lingering Echoes

The story about music, new experiences and tragic future. Lingering Echoes returns and the annoying beams that help from some enemies while others will use it against you.

LE-7: Semi-Synthetic Solvent
LE-6: Grindstone
LE-5: Sugar Pack

Farming efficiency: Sugar > Grindstone > Solvent.
Again thanks to Gamepress for all the calculations.
Returning Players:

The following stages should be cleared for certs: LE-1, LE-2, LE-3, LE-4, LE-5, LE-6, LE-7, LE-8, LE-EX-8-CM