The curtain rises on Ousama Ranking S2 with the unfolding of a new chapter. After losing the throne to his brother Daida, Bojji embarks on a journey to find his strength and prove his worth. He becomes an apprentice to Despa from the underworld, a cunning and seemingly superficial mentor with an unusual fondness for preserving beauty.

In the first episode, Bojji and his loyal companion Kage dive headfirst into the underworld, with Bojji training to become a true king and Kage serving as his unwavering support. In an unexpected turn of events, Despa interrupts Bojji's training when he discovers an age spot on his face. Despa's vanity throws him into distress and halts the training until Kage takes it upon himself to procure a tremella mushroom, known for its rejuvenating properties.

This quest leads Kage to the Okkana Forest, a place full of dangers and horrors. The journey tests Kage's courage and dedication, and he helps an elderly woman who initially appears to be nothing more than a helpless victim of circumstances.

In a surprising twist, the elderly woman turns out to be the elusive tremella mushroom harvester, and Kage unknowingly receives his reward in the form of a mushroom-filled pie.

The episode ends with an unexpected turn. Bojji and Kage are tasked with earning money—a seemingly simple mission that forces them to navigate various societal roles. Despite the setbacks they face, they remain undeterred and demonstrate perseverance. They encounter a young girl trying to win money in a gambling game to buy medicine for her sick mother, further emphasizing the theme of compassion. Bojji's desire to help is initially hindered by the harsh reality of the world around him, but in the end, he manages to make a difference.

Unexpectedly, Despa takes the money Bojji and Kage earned and uses it as an investment in the girl's future, paving the way for her financial stability and independence. This act seems uncharacteristic for the otherwise selfish Despa.