海甲 introduced K-POP to Japan for the first time in 1995.
He has seen the history of K-POP for a long time.
He introduces a noted board 107times out of K-POP, K-ROCK, and K-FOLK.
If this book is read, the history of a South Korean song is known, and the noted board and excellent piece of music which should be listened to truly are known.
It is a Japanese description.