Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Passage: Abụọ n'ime arụmọrụ Yezi ka a tọhapụrụ dị ka ndị otu n'oge ngosi ahụ: "Solo (Remix) " (nke Jay Park na Loco) na "Listen Up" (nke Hanhae). Abụ abụọ ahụ gbara na Gaon Digital Chart, na nọmba 16 na 27. A maghị Yezi nke ọma dịka onye otu Fiestar, ma nwekwuo mmata ọha na eze mgbe Unpretty Rapstar gasịrị. O kwuru, sị: "Tupu ihe ngosi ahụ, ndị mmadụ na-asị, 'Echere m na ọ dị ebe m hụrụ ya,' ma ugbu a, ndị mmadụ na-amata m ozugbo, ọ bụrụgodị na eyighị m uwe m ji eme ihe ngosi". Ndị na-akwado ya nwere ekele maka ụdị rap "ike" ya na onyonyo "bad girl". Yezi bu ụzọ wepụta ụdị ọhụrụ nke "Crazy Dog" na Disemba 11, 2015. Ọ bụ Rhymer nke Brand New Music mepụtara ya ma gosipụta San E, otu n'ime ndị ọka ikpe na Unpretty Rapstar. E wepụtara maxi mbụ ya, Foresight Dream, na Jenụwarị 28, 2016. Ọ bụ Rhymer mepụtara ya ma nwee abụ anọ, gụnyere "Cider", nke a kwalitere na ngosi egwu dị iche iche. Abụ ọzọ, "Sse Sse Sse", gosipụtara ndị asọmpi ibe Gilme, KittiB na Ahn Soo-min. Na 23 Disemba 2015, Yezi wepụtara otu egwu nkwado akpọrọ "Z-Noid" maka egwuregwu Counter-Strike Online ma gbaa vidiyo egwu.  Ajụjụ: Olee mgbe o wepụtara Crazy Dog?
Disemba 11, 2015