Ruck (リュック) is a supporting character in I'm the Villainess, So I'm Taming the Final Boss, voiced in Japanese by Shinichirou Kamio. The series' music includes "I'm the Villainess, So I'm Taming the Final Boss - Opening | Kyо̄kan Sarenakute mo Ii Janai", "I'm the Villainess, so I'm Taming the Final Boss - Ending | Nomick".
