Eir Aoi releases an original full album! In addition to new songs, it contains all 10 songs including "MONSTER," the opening theme of the TV anime "Classroom of the Elite 4th Season: Year 2, First Term," and "Esoragoto," the opening theme of the TV anime "That Time I Got Reincarnated as a Slime Season 4," both released from Lantis. The first-press limited edition comes with a Blu-ray containing the MUSIC VIDEOs of "MONSTER," "Esoragoto," and the new songs, plus a documentary video following the album's production process. Comes with an original towel.