In this episode, the conflict with the branch families and the malevolent spirits reaching for the Tanmoku leadership reaches its peak. Tanmoku Ki is physically and spiritually exhausted, pushing his limits to maintain the seal. You Keika, realizing that his own "soul power" is the only thing that can stabilize Ki, makes a choice to stop being a protected entity and instead becomes Ki’s ultimate shield.

Based on the popular manhua by , the second season (Bond of the Underworld) shifted toward a more serious, action-oriented tone compared to the first. Episode 9 is frequently cited by fans on MyAnimeList for its high-quality animation during the combat scenes and its faithful adaptation of the source material's emotional beats.

You can catch the full episode and the rest of the season on these official platforms:

: Offers both the original Chinese (Haoliners) and Japanese dubbed versions.