Lee Dong-hwi, the younger brother of Cha Eun-woo, a member of the group Astro and an actor, recently attracted significant attention by revealing his face. On the 16th, Lee Dong-hwi gave a lecture at the 'AI Summit Seoul & Expo 2025,' which was posted on the YouTube channel 'Sebasi Lecture.' Various AI-related topics were covered at this event, and Lee Dong-hwi presented together with Jo Yong-min, CEO of Unbound Lab, under the theme "AI Recipe: AI Made for My Brother, Evolving into a Brand Verification Tool."

In the video, Lee Dong-hwi said, "Unbound Lab is participating in the largest AI event in Korea. I am presenting together with the researcher who developed and planned this solution." He also mentioned his background, explaining, "I majored in media in China. While working in advertising, I discussed some personal concerns with CEO Yong-min, and based on his advice on whether these issues could be resolved, I became involved in this planning and development."

Lee Dong-hwi indirectly referred to his older brother Cha Eun-woo, saying, "Since I have lived a life somewhat close to celebrities, I have focused on their concerns and interests." Reflecting on how celebrities communicate with their fans, he added, "I have seen celebrities suffer a lot from malicious comments. Constructive feedback should naturally be accepted and lead to growth, but because there is so much media, there are excessive malicious comments." Lee Dong-hwi revealed that he is planning a protection system with CEO Yong-min to address these issues.

Lee Dong-hwi's appearance, similar to his brother Cha Eun-woo's, attracted much attention. CEO Jo Yong-min joked to the production crew filming Lee Dong-hwi, "The PD is sweating a lot," to which the PD responded, "I guess I'm nervous too," causing laughter. Lee Dong-hwi's handsome looks have already drawn attention, as Cha Eun-woo mentioned in the past on a broadcast. Cha Eun-woo proudly said on tvN's 'You Quiz on the Block,' "My younger brother is majoring in journalism and broadcasting in China. He attends one of the nine famous universities in China."

Astro members expressed surprise on a variety show, saying, "Cha Eun-woo's younger brother is really handsome. His face is even smaller than (Cha) Eun-woo's." After Lee Dong-hwi revealed his face, netizens left comments such as, "He looks exactly like Cha Eun-woo's younger brother, no more, no less," "I couldn't hear what was being said because I was looking at his face, so I have to watch it again," and "It feels like seeing a version of Cha Eun-woo if he were an ordinary person," showing explosive interest.

Other comments included, "Researcher, you should debut," "Both brothers are shining the country. Amazing," "So handsome," "His face looks unreal, like it has a filter," "Anyone can tell he's just Cha Eun-woo's younger brother. Really handsome," "Even if no one says who the older brother is, everyone would know," "He could be an actor," and "Korea's number one handsome man Cha Eun-woo, number two Lee Dong-hwi," among various reactions.

Meanwhile, Cha Eun-woo enlisted in the Army Band in July 2025 and is currently serving in the military. With Lee Dong-hwi's face reveal coinciding with Cha Eun-woo's military service news, public interest in the two brothers has grown even more. Lee Dong-hwi is expected to continue his activities in the AI field going forward.