Five members (Hoyoung, Dongheon, Yeonho, Minchan, and Gyehyeon) voted Kangmin as the noisiest one in the dorm.
Hoyoung said that Kangmin once started singing out of the blue at 3:00 in the morning. When they complained about it, Kangmin only sang louder.
Minchan added that even Kangmin’s alarm clock is noisy.
Kangmin sets up his alarm clock to wake him up for school but he never actually wakes up when it starts ringing. Minchan is usually the one who would turn off the alarm and then wake Kangmin up.
Dongheon is the runner up to noisiest in the dorm, with Yongseung and Kangmin voting him. Since Dongheon always has his earphones on, he often asks what the other said in a loud voice. When he hears loud voices in his room and wants to know if there is trouble, he doesn’t step out of the room but asks loudly if there is a problem. Yeonho revealed that sometimes, Dongheon would call him to his room only to ask him to turn off the lights.
(Twitter Blue Room Q&A Live, Apriil 30, 2019. Translation based on Youtube video with English subtitles by @verisubs).