Sixteen Voices of the Yan Cloud: A Lone Horse Whinnying in the Woods is a very important part of the main quest, which must be completed to unlock other regions and the following story. However, many players are unsure how to proceed after reaching this part. Below, we will share a detailed walkthrough of this main quest. You can compare your current progress with this guide and follow the steps to complete it smoothly.

I. Introduction
After the preceding storyline, the opening scene raises doubts about Aunt Han's identity as a foster mother. To resolve these questions, we enter her room while she is away, searching for any useful clues. Just as we prepare to leave, Itō suddenly appears in Aunt Han's room, revealing that our previous escape from his hands was intentional, as he wanted to follow us. During the conversation, many black-clothed figures appear outside the room and start shooting arrows into the house. Using wooden boards on the ground as shields, we can withstand the arrow rain. Following the storyline, we cooperate with Itō and decide to leave one person alive to track him and investigate further.

II. Tracking
While tracking the black-clothed figures, crouch and try to stay close to the edges. The black-clothed figures will occasionally look back; choose "remain silent" to quietly follow them. The tracking leads to a wine cellar. As we prepare to go deeper, a mechanical door descends, separating us from Itō. To free Itō, we need to find a stone statue. Proceed forward, taking the right path while avoiding flames spouting from both sides. Climb uphill to the upper level, retrieve the Buddha statue, and the mechanism will deactivate. Return to Itō's location, use the Buddha statue to press a stone slab, and step on another to rescue Itō.

III. Wine Cellar
Following Itō, we fight enemies along the way until entering a stone door where toxic smoke fills the area. Only by defeating enemies holding torches can the toxic smoke be stopped. Since the enemies here are powerful and the indoor environment is toxic, it is recommended to use a bow to lure them out one by one for easier defeat. Continue forward for a tense battle. Enemies ahead can be approached by crouching and eliminated via assassination. Enemies below can be shot with a bow until they are lured near explosive barrels, then shoot the barrels to eliminate them all. Note that treasure chests are scattered along various paths during exploration. After reaching the statue, remember to climb upstairs from the left, search the chest above the statue, return to the right, and continue climbing the ladder with Itō to exit successfully.

IV. Rescue
Upon exiting, numerous enemies await outside. Direct confrontation may lead to being surrounded, so we split up with Itō. He attracts most of the enemies, allowing us to enter the temple to rescue hostages. Reaching the side house, we find the door locked, so we jump onto the roof and enter through a hole. Inside, we find Red Thread and Broad Beard kidnapped, but not Aunt Han. Rescuing them triggers an encounter with the Wu Ma warrior. His attacks are mostly wide-ranging, requiring timely counterattacks. Be cautious of his poison smoke attack, which has a wide range and high damage. Timely health restoration allows for easy victory. After depleting his health, the Wu Ma warrior seems unbeatable, leading to Aunt Han's intervention. We collapse heavily injured, and the plot continues until we return to Buxianxian. After conversations and finding Itō on the rooftop, the storyline concludes temporarily. Further progress requires leveling up to 21.

The detailed process of Sixteen Voices of the Yan Cloud: A Lone Horse Whinnying in the Woods has been shared above. This task is indeed lengthy, involving a significant storyline, exploration, and combat. Although Aunt Han's true identity remains unrevealed, completing this section sets the stage for unraveling the mystery gradually.