On trains, the corner seats fill up first, and at cafes, we try to secure a corner seat whenever possible… Don’t you feel oddly “calm” when you’re in a corner? Meet the slightly negative but full-of-personality “Sumikko” characters: “Shirokuma,” who feels the cold easily; “Penguin?” who lacks confidence; “Tonkatsu,” a leftover piece of pork cutlet(?!)； “Neko,” who is shy; and “Tokage,” who hides his true identity—just to name a few. If you love corners, or if corners intrigue you, won’t you become one of the Sumikko friends too?