Responses
wait..which coworker do you mean??
This one, http://www.mangago.zone/read-manga/kuroneko_kareshi_no_arukikata/uu/kuroneko_kareshi_no_arukikata-chapter-4/14/
That is the brother lion from nekoka danshi. Hes also a model
I just realized that Keichis coworker is from the prequel http://www.mangago.zone/read-manga/nekoka_danshi_no_shitsukekata/ the lion guy,