Iyama is attacked by a Man in Black - Kazamya.
Iyama gives you the "Warrior's Onslaught Extract" to defeat Kazamya with special abilities.
Take the extract. You can assign a quick access button in the Items App.
Then hit the "Circle" button various times to achive the Tutorial Objectives.
After the fight, you get the Materials from Iyama to craft the same extract yourself.