This is a walkthrough for Arataki Itto Story Quest The Oni’s Justice which is the second quest in the Taurus Iracundus Chapter. It’ll navigate you through the necessary steps to finding the Onikabuto.
You set off to Yashiori Island using the clues Sango provided…
Go to Yashiorio Island to search for Arataki Itto
Using the information given by Sango, fast travel over to Formation Estate at the Yashiorio Island, then use your Elemental Sight and follow the footprints until they disappear which will trigger a short scene where you’ll first see Arataki’s Itto. Next up, crouch behind the nearby crates to stay out of Arataki’s line of sight, then wait until he walks away before slowing up, walking closer to him and holding R2 to throw beans at him which will initiate another scene.
Go to the Onikabuto capture spot
Head up to the top of the nearby cliff to trigger another scene, then go towards the tree further up the hill and you’ll witness it being struck by lightning. Ignore that, and investigate the tree before jumping off the cliff and gliding over to the Lavender Melons. Travel west a little bit and you’ll find a rock with a bug on it, approach it and you’ll find a scene. Finally, head to the tent located east from your current location and once the final scene will play out before bringing this quest to a close.