The album contains features from artists Ayuse Kozue, Kuchiroro, Shigeo from Japanese bands SBK and The Samos, and the album producer Ōnishi Terukado.

"Plastic Doll" became the album's title track and was given a music video.

The concert "Aira Mitsuki Special Live '090319' in Liquidroom" supported the singles.

Upon its release, Plastic debuted at the thirty-third spot of the Oricon Weekly Albums Chart and later selling 4,195 copies, becoming her current best-selling album according to Oricon.

[2] Adapted from the album's Oricon page and Apple Music credits.