Penki (album)PENKI is Japanese voice actress and singer Maaya Uchida's first album, released on December 2, 2015.Event 『 Maaya Party！Vol.4 』 Maaya Uchida 1st Album Release Event「Maaya Party！Vol.4」（December 5, 2015 - December 12, 2015：Tokyo, Aichi, Osaka）