At Jeremy High, monsters hide behind uniforms, grades, and polite smiles. Beneath its classrooms, a secret game of psychological warfare has always existed — unseen by ordinary students.
Enter Yuna Sakune: thirteen years old, silent, unreadable, and terrifyingly brilliant. While Riyura Shiko faces his own struggles above, Yuna moves through the shadows below, studying people like equations and emotions like weaknesses to exploit. Shaped by childhood trauma, he believes attachment only leads to destruction.
But when Yuna discovers a hidden "real-life chess" network fueled by manipulation, blackmail, and engineered breakdowns, he is pulled into a ruthless war against mastermind Kanuki Takuyane and the unstable Havuku Jize. As loyalties collapse and minds shatter, Yuna is forced to confront the humanity he buried long ago.
Welcome to the creation of something colder than a villain.
"The Names... YUNA SAKUNE!" is intentionally much shorter than "The Names... RIYURA SHIKO!", running for only around ten episodes. While the original series follows Riyura’s struggles, enemies, and personal conflicts, this side story explores the darker corners of Jeremy High that often go unnoticed when his attention is elsewhere.
Most of the school’s hidden dark secrets, manipulation, and psychological systems were already hinted at throughout the main story, so this series exists to directly show parts of those events rather than fully re-explaining everything again. It’s designed as a short but intense glimpse into the dangerous side of Jeremy High — the quiet wars, hidden breakdowns, and evil things happening in the background while Riyura fights his own battles.
A smaller story. A colder perspective. Another hidden side of Jeremy High.
"The Names... YUNA SAKUNE!" is intentionally much shorter than "The Names... RIYURA SHIKO!", running for only around ten episodes. While the original series follows Riyura’s struggles, enemies, and personal conflicts, this side story explores the darker corners of Je...