The Jōhoku Line (城北線 Jōhoku-sen) is a Japanese commuter rail line between Kachigawa Station in Kasugai and Biwajima Station in Kiyosu in Aichi Prefecture. Trains are operated by Tōkai Transport Service or TKJ in short while its rail facilities belong to Central Japan Railway Company (JR Central). TKJ a wholly owned subsidiary of JR Central only operates this line.
