Imouto wa Shitteiru

To his colleagues in the corporate world, Kiichiro Miki is nothing more than a forgettable salaryman. Drifting through his daily responsibilities with an impassive demeanor, he has earned a reputation among his coworkers as someone entirely devoid of personality or charm. Even during after-hours gatherings and company drinking parties, he remains a detached presence, seemingly incapable of enjoying himself or connecting with those around him. To the outside observer, his life appears remarkably dull and unremarkable. However, there is one person who sees past this carefully maintained facade. His younger sister knows a secret that no one in his professional life could ever suspect. Behind the mask of indifference lies a completely different reality, one that only she is privy to. In her eyes, the brother whom the rest of the world dismisses as hopelessly ordinary is far from it. She alone understands the hidden depths of his true character, firmly believing that beneath his expressionless exterior, he is actually the most fascinating man in the entire world.