 The east side of the castle was further protected by outer barrier.The construction of Komine Castle began in 1340 by Yūki Chikatomo, is a small hilltop fortification with earthen palisades.After the fall of the Satake clan in 1589, the Yūki allied with the Date clan to the north; however, were dispossessed in 1590 by Toyotomi Hideyoshi.