IST Entertainment's new boy group "ATBO" announced that Won Bin will be added as the new member and will debut as a 7-member group. ..

● Yang Dong-hwa abandoned his debut after admitting allegations of bullying in junior high school.

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Won Bin, who received the highest score after being evaluated by IST Entertainment. He showed the high speed of improvement in ability and the possibility of great growth,

and was decided as the new member. ..