The Boyz' Sunwoo has faced a controversy from his pre-debut days which has resurfaced recently. Online discussions shed light on AskFM responses associated with Sunwoo from his earlier years, bringing to attention his past conduct. These AskFM posts, containing profanity, misogyny, and disturbing content, have prompted shock and disappointment among netizens.

The responses include demeaning remarks towards women, glorification of harmful behavior, and a concerning attitude towards relationships and physical appearance. Despite this controversy emerging previously, it has gained traction again due to recent events involving Nana.

Netizens expressed disbelief and disgust over Sunwoo's past remarks, questioning why such behavior went unaddressed or overlooked. The overall reaction towards Sunwoo's resurfaced controversy ranged from disbelief and outrage to disappointment and condemnation, with concerns raised about the kind of values being supported by fans and the industry.