When the Treasure Hunt event started, all of the students that were assigned as scouts went on their way ahead of the classmates. After searching for a while, one of the scouts of the 210th was able to find a puzzle so Kraftvoll and the others went on their way there, after reuniting with the other scouts.
After seeing the clue, Kraftvoll and the other students of the 210th class started to search every nook of the surrounding. In the end, Aredhel was able to find it at last.
Since the ground, where the X-mark was found, was hard, Kraftvoll and the other started to think of a plan to dig it out.
After a minute of thinking, they were able to think of an action to dig it out of the ground. Kraftvoll decided to insta-cast a seishin spell to soften the hard ground.
He shouted, "Sprinkle!"