COCX-34639~40: Yakyuukyou no Uta Original Soundtrack Honmeiban

[depa]

Don't understand where does the "北の狼南の虎" arranged version by Kensuke Kyo comes from. Those credits are taken from wiki yeah, but Mitsuo Hagita can't be the movie version since it was released in September 1979. The official album released in February 1979 confirms Mitsuo Hagita credit, anison don't have Kensuke Kyo version in the database, and all credit of this Honmeiban compilation on the net gives Mitsuo Hagita.
Anyway can someone check in the booklet please...