Azuchi Hyotanyama Kofun Location and Walkthrough

Make your way to the Omi region, located northeast of Izumi Settsu. Head to the southeast side of Omi. If you have explored the area, find one of the two Viewpoints in Azuchi, the major settlement in the southeast. Open your map and look to the forest east of the Suzuka Foothills for the Kofun's location.

Ensure you are controlling Yasuke. Upon entering the Kofun area, you will encounter an Outlaw Brute. Defeat him using ranged attacks (Bow or Teppo) or by assassinating him.

On the left wall as you descend the stairs, find an explosive jar. Shoot it to reveal a chest containing gear.

The door at the bottom is locked. Return to the top of the stairs and sprint at the door to have Yasuke barge it open. This is the only way to enter.

Continue down the path to an intersection. You will see a gap ahead and a slope to your right.

Before proceeding, use a ranged weapon to snipe the two Outlaws across the gap. Aim for headshots.

Take the slope to your right and slide down. At the end, drop down and move the wooden box closer to the ledge on the other side to jump across.

In the next room, you will find two movable wooden boxes and a chest on the western wall. Move one box to reach the chest.

Move a wooden box closer to the southern ledge and leap across to climb out of the room.

You will arrive in the area where the two Outlaws were. If you didn't defeat them earlier, you will fight them now.

Continue following the path to another gap. On your current ledge, there are two explosive jars.

Pick up an explosive jar and drop down. Carefully throw it up to the other ledge. Alternatively, use the two wooden boxes to create a path to jump across while carrying the jar.

Place the explosive jar on the other ledge (not down into the room). Detonate the explosive jar to your right to reach another chest.

Use the wooden boxes to create a path across the gap. Pick up the remaining explosive jar, leap across the gap, and place it in front of the rubble. Detonate it.

This leads to the final room containing the Legendary Chest. You will face three Outlaws, one of whom is armored and potentially difficult if you are underleveled.

Defeat the three Outlaws, prioritizing the non-armored ones first to focus on the armored enemy.

Claim the Legendary Chest to obtain the Heartspiller Legendary Bow and the Posture Shot with Charged Arrow Engraving.