On the first episode of 'Wanna One Go', the two members shared the story behind their kiss that took place during the final live broadcast of 'Produce 101' season 2. 

Park Ji Hoon explained, "Before the airing, Lai Kuan Lin asked me to give him a kiss if he makes it in the top 11. When I went over to congratulate him after his ranking was announced, he said, 'Hyung, you need to keep your promise'." 

Lai Kuan Lin then expressed affection for Park Ji Hoon as he commented, "I like how Park Ji Hoon hyung and I tend to fit well. (For example,) During our car rides, everyone is talkative but the two of us are the only ones sleeping."