What makes Yokoku by Aiko notable?

'Yokoku' received critical acclaim for its lyrical depth and production quality, contributing to Aiko's reputation as an influential pop artist in Japan. The album’s lead single gained considerable airplay and helped it chart within the top tiers of Japanese music rankings. By the time 'Yokoku' was released in November 2017, Aiko had established herself as a prominent figure in the Japanese pop scene following her previous albums. This release marked her continued exploration of personal themes and sonic experimentation, further solidifying her artistic identity after her breakout album in 2015.