The first episode of Channel A's 'Heart Signal 2' aired on March 16. The new season welcomed ONE and Soyu as the MCs. 

During the introduction, ONE revealed he has a 100% success rate in love confessions. However, he brought laughter as he explained, "I've only asked a girl out two times" and added, "I've always received confessions. The number of times a girl asked me out exceeds two digits."

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Yoon Jong Shin then complimented ONE's outstanding visuals. To this, ONE credited his father, saying, "My dad looks like Tony Leung Chiu-wai."