When Riki discovers that someone calling themselves "Mask the Saito" has been secretly protecting the town from danger, he becomes obsessed with uncovering the vigilante's identity. Convinced the mysterious hero must be connected to the Little Busters, he launches an investigation that pulls the entire group into an increasingly absurd chase. What begins as a serious mystery quickly spirals into comedy as each member of the team contributes their own ridiculous theories and hilariously botched stakeouts. The episode balances genuine moments of camaraderie with laugh-out-loud hijinks as the group bonds over their collective incompetence. Relationships deepens through the chaos, revealing how these friends support each other even when their plans inevitably fall apart. The atmosphere shifts between comedy and touching sincerity, never staying in one place long enough to feel predictable. This special works best for those already invested in the Little Busters cast, offering a chance to spend more time with characters you've grown to care about. Newcomers might find the humor less grounded without that foundation, but anyone who loves character-driven comedy with heart will find something here worth watching.