#RebellionofSilver

WARNING: Major plot spoilers ahead.

A one-off Boss Character in R.o.S. for Tails and Cosmo's path, as well as Tails and Cosmo's Boss form.

Tails' Lingering Sentiment is what remained of Tails in the Continuum Paradox arc after his body was destroyed by a seithr explosion in a battle where Cosmo had no choice but to stop Tails from causing something he may later regret by using seithr to bring back those who perished over the course of the R.o.S.'s lore; a lingering spirit.