Charge! Princess Recovery Battle!! (S01E04)

Gaul's special forces, the Génoise trio, kidnaps Millhiore and he challenges Sink to a duel. Sink, Éclair and chief researcher Ricotta Elmar come with a plan to storm the fortress where she is being held to rescue her in time for her victory concert. Heavily outnumbered by the enemy, Sink and Éclair manage to turn the tides when the freelance knights Brioche Dalkian and Yukikaze Panettone come to assist them. (Crunchyroll)