東方神起 influence in Japan is mentioned in a news article about EXO’s going into JP this year
TVXQ-related only:
“Their senior within the management company is 東方神起. However, the duo (of 東方神起) have enlisted into the army this year. 東方神起 is an enormous profit earner in the Japanese market, (so) in order to fill that hole, EXO has been deployed to Japan after much preparations” statement of related personnel from their record label.
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Credits:
TVXQ! Express 