How did you get the clue to kill the secret treasure of the light and dark battle group by riding a horse?

Get the secret treasure 1 tea (seems to need friendliness). Get 3 clues, then camp out and talk to him about one of the secret treasures.

Secret treasure 2 ... 80 points or more in horse riding and shooting or obstacle course 1600.

Secret treasure 3 ... obtained after the dark trial.

Secret treasure 4 ... coach Chandana Akai finished training.

The secret treasure 5 Jierkala is on the steps 3 meters to the left of the armor shop. There is a dead end inside, just on the wall where firewood is placed. Get on a horse and jump over.

This is the channel. Of course, I forgot the order of 12345.