It was all Good with the Spade and the Heart - S2.E13

The ice monster makes Jiyu and Freesia fight side by side. As Jiyu's fever begins to spread, she entrusts Freesia as the battle continues, and uses her fever to melt the monster. Kita Furo is freed, provokes Jiyu to a duel and loses. The monster starts reconstitute himself so fast that the two Jubei II's fight as one, together they wipe out Kita Ressai, releasing him from his hatred. The spirit of Yagyu Jubei congratulates them both before leaving with Koinosuke and Ayunosuke. A few days later, Jiyu while walking along with her friends, she sees Ayunosuke sleeping and rushes to her side. The ending credits shows how the lives of other characters change (for example, Furo becomes a police officer).