Mahou Sentai Magiranger
In both of the crossovers, Ban notably had initial trouble in getting along with the red ranger members Ryoga Hakua and Kai Ozu from the Abaranger and Magiranger teams at first, which led to an argument, until they bonded with him seeing how similar their goals were. Ban also called Kai "aibō" in the team-up, his affectionate term usually reserved for Hoji, much to the latter's annoyance. He has a crush on Marie Gold. In "Mahou Sentai Magiranger vs. Dekaranger", there's implications of Ban and Mari being together. For one, Ban carries a Picture of Marie with him and Hoji asked him if Ban "popped the question" to her.