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Artist's commentary
GuP Kindergarten Returns! Story 350 - Let's Go To Ooarai! Part 4
Let's go drink some biwamin at Yonekawa's Bar!
Source: https://twitter.com/s4_black/status/1521686872569049088
English:
In Oarai, a drink called "Biwamin" is sold. It is very tasty.
Chiyomi drank it all, so her mother decided to give some for herself. Then the doctor said, "Biwamin is good for beauty."
The mother put the Biwamin back in her own hand.
Source: https://twitter.com/s4_black/status/1521687009210683392