Kirigaya Kazuto, an «SAO Survivor», finds himself in the position of beta-tester for a new game known as «Equestria Legends Online», or «ELO» - only to find that, once again, his log out button has gone missing.
A tragedy throttles the life of former cello prodigy Jaemin Song, forever pausing the concert of his life. But, between his childhood friend, a spontaneous arrival, and a ghost from the past, the metronome of life ticks on.