BOYS24 reveal strange set of SNS spoilers

The first teaser consists of a series of drawings, which seem to be clues hinting at the upcoming project. The drawings/text consist of people exchanging text messages, the words "I can do it", the Korean letter '?' (equivalent to the 'S' sound), a drawing of a molar, and more. 

The next two teasers are brief videos of the BOYS24 members, interacting in quizzical ways. All of the teasers are accompanied by the caption, "#090909". You can also notice that the group's official SNS names have been changed to @Official_IN2IT. Do you think this may be their new group name?

Meanwhile, BOYS24 will be promoting as 8 members following the determination of its final group members. 

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What do you think the spoilers are for?

#090909

Boys24_official