Touma Akechi is a transfer student joining the featured class. He possesses an exceptionally verbose speaking style, characterized by lengthy and detailed explanations that define his interactions and create distinct dynamics within the school environment. Physically, he has blonde or ochre hair and purple eyes, with a birthday on September 5th. He shares a history with the protagonist from their elementary school days, making him one of the few characters with prior knowledge of Saiki before transferring to PK Academy. This past connection fuels his persistent suspicion regarding Saiki's hidden psychic abilities. Driven by his analytical nature, he meticulously investigates these suspicions through extensive questioning of classmates and others, attempting to gather evidence or testimonies. Specific incidents highlight his role: during a sweet potato harvesting class activity, he deduces Saiki's aversion to bugs and deliberately exploits this fear to disrupt Saiki's composure, aiming to force a display of psychic power. He also appears in other school scenarios, such as the introduction of a robotic cat mascot created by Saiki's brother and events involving the wealthy student Metori Saiko. His extreme talkativeness is occasionally noted alongside traits like analytical thinking and underlying social anxiety.