Hikari is on a quest to take back his home. During Hikari’s Chapter 3 in Octopath Traveler II, he’ll travel to Wellgrove to stop a shipment of weapons from reaching Ku. Please note that the recommended level for this main story is 26.
Wellgrove
After the flashback, you’ll begin searching for Azuma, the merchant. He can be found in the tavern at night. Use Hikari’s Bribe Path Action on him (requires 1000 leaves) to glean the Weapons Deal Details. Next, make for the Secret Forest which is west of town.
Secret Forest
Make your way through this area. As you head west past the savepoint, you’ll stumble across the deal being made. This will of course lead to a fight where you’ll fight 3 Ku Soldiers. They are vulnerable to Spear, Axe, Ice and Light. Take them out then challenge General Rou. He’s vulnerable to Spear and Bow. After you defeat him, you’ll battle with your shadow again and save the weapon shipment. Afterwards, the chapter will conclude.