Seunghan's Leaving RIIZE: An Emotional Statement

Seunghan, one of the K-pop idols composing part of RIIZE, penned a heartfelt letter to the public clarifying why he left the group.
He mentioned in the letter how much he was regretting things, and he apologized to the fans, the members, and the company for all the commotion his actions caused. He confessed himself as having been selfish, focusing more on himself, which brought some destructive consequences to the group and its supporters.

Seunghan said he thought he should leave the group for everyone's benefit, so nothing worse will be done or further misunderstandings would be spread. He professed gratitude for being given the chance to witness RIIZE and wished the group more success.

In the midst of this letter, fans have reacted largely with mixed emotions: some are supportive and understand the decision, while others resent it and feel frustrated.

Would you like to know about the specific reasons why Seunghan had to leave the group or the reactions from the fans?