On the SBS variety show "No, But Really!", the I.O.I members were shown reuniting to celebrate their 10th debut anniversary.

In the broadcast, the I.O.I members were seen watching Kim Sejeong's acting scenes together. After the MCs mentioned that Kim Sejeong focused on acting while taking a break from I.O.I activities, some scenes from the SBS drama "Business Proposal" were aired. The members cheered at Kim Sejeong's charming acting, and Jeon Somi expressed her excitement, saying, "Honestly, this is the first time I've seen unnie act." During the kissing scene that followed, Kim Sejeong couldn't hide her embarrassment and said, "Honestly, I don't watch scenes like this either," while the members showed various reactions such as looking away from the screen or pushing each other. After watching the scene, Jeon Somi said, "It's a bit difficult." Kai mentioned EXO member D.O., saying, "He acts really well, but when the members watch, they notice things. So, no matter which member acts, we all watch together and tease them."

Meanwhile, the broadcast also revealed episodes among the members during their I.O.I activities. Jeon Somi mentioned conflicts with Kim Sejeong and Kim Doyeon during their past activities. She said that during a monthly meeting, Kim Sejeong pointed out to her, who had lain down early due to the next day's schedule, "The unnis are all sitting and we're in a group meeting, so lying down isn't polite." Jeon Somi said she immediately got up and participated in the meeting. Kim Sejeong said, "I don't remember," but added, "Even now, I think it's right to get up. Who isn't tired?"

Jeon Somi also shared an anecdote about Kim Doyeon. Kim Doyeon asked if she could eat bread, and Jeon Somi gave permission, but Kim Doyeon criticized her tone, threw the bread, and went into her room. Kim Doyeon admitted that she also had a Confucian mindset.

Along with this, Chungha revealed that she had gotten angry at the members only once during their I.O.I activities. Chungha said that before the manager left for home, she was told to express all her frustrations, so she said, "You guys don't think of me as unnie," and then left. In response, Choi Yoojung said, "My heart dropped."