Otoko no Jouken! Gurren Lagann

'''Otoko no Jouken! Gurren Lagann''' ( 男の条件!グレンラガン) is the fourth and final addition to the Otoko drama CD series. It was released with the Blu-Ray box set of Tengen Toppa Gurren Lagann.

Story
The story of this drama CD follows the main cast after a several year timeskip, long after they have graduated from school.