The concept of thin flaps vascularized by the subdermal vascular network was first described by Situ [1] in 1986. Since then, various types of super-thin flaps have been applied successfully in China and Japan. Basic research were also performed to better explain the excessive survival mechanism [2–5]. The authors have developed these thin flaps, called “super-thin flaps,” which were first reported in 1994 [6]. Based on these successful clinical uses, supercharged super-thin flaps [7] and preexpanded super-thin flaps [8] were also reported and are now widely used. Our ultimate goal—development of “thin and reliable flaps”—is a unifying principle between “super-thin flaps” and perforator flaps.