Yui Horie
For the first season, the opening theme is "Scarlet Knight" by Nana Mizuki, and the ending theme is "Presenter" by Yui Horie, both produced and composed by Elements Garden. The opening theme for the second season is "Fearless Hero" by Nana Mizuki and the ending theme song is by Yui Horie. The opening theme for the third season is "No Limit" by Nana Mizuki and the ending theme song is "Stay With Me" by Yui Horie.