Lil' Red Riding Hood Cha-Cha S03 E07 Move move nininsankyaku

Unfortunately, Chacha gets to pair with Teacher Barabaraman (who grows thorns all over his body when he gets too excited or happy) on a three-legged race. Luckily, Seravi fixed a potion for the thorny teacher. But there's a catch with the potion, how long will the potion last?