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It's natural to wear a mask at this time, but what if the corona ends? Masks are not only for me, but also for others.

Reporter Kwon Young-in predicted the world changed by the mask.

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A citizen finds an empty seat.

As soon as I try to sit down, I see a person who is not wearing a mask and immediately leave.

Another citizen sees an unmasked person and moves to another seat.

I experimented with anxiety, distrust, and anxiety about others who did not wear a mask.

I asked the person who wore the mask and the person who didn't wear it to fill out the questionnaire.

((Have you seen (pre)) with or without (mask)? Yes, I saw. (Did you wear a mask or not when choosing a seat, did you influence your choice?) Yes. (Oh really.)] I

asked 20 people, but 15 sat in front of the person wearing the mask.

[Lee Soo-jin / Namam-dong, Seoul: Even if I'm anxious from now on, I'm reluctant to have a conversation at a close distance if I'm

wearing a mask. He said he didn't know the truth.

[Park Soi / Amsa-dong, Seoul: I think I will carry a mask (even if I have 0 confirmed patients). I use it in crowded places, subways and buses, and I think it's less likely to use it in walking or restaurants.]

I asked 12 professors of social science and psychology who weren't experts in quarantine.

Eleven respondents said that the standard of wearing a mask would be different from before Corona19 if vaccines and treatments were not available.

It's also because I knew its efficacy through wearing a mask, but I also experienced a new sense of community that the mask is 'caring for others' and the interests of others like that can soon become my own.

[Kim Ho-ki / Professor, Department of Sociology, Yonsei University: I think that I have discovered the importance of Korean collaborativeism or Korean communism that considers others as well as others.]

However, inter-individual cooperation that emerged as a big trend goes beyond existing individualism. It is pointed out that there are concerns about the side effects of infringement of minority liberties or hatred of other communities in the process of being made.

(Video coverage: Lee Byeong-ju, video editing: Park players, VJ: Young-sam Jeong and Han-wook Jeong)