The Shut-In Courier's Case Files: Small Town Mysteries

Aiko Amemiya, a female graduate student, possesses extraordinary deductive reasoning but suffers from severe social anxiety disorder, confining herself to her room and rarely attending university. Her only lifeline is late-night food delivery work through the 'FreshLine' app, where anonymity allows her to maintain a fragile connection with the world. When a customer dies under mysterious circumstances during one of her deliveries, Aiko is reluctantly drawn into a web of inexplicable incidents t