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Artist's commentary
Nishizumi Sisters' Valentine
An Onee-chan overly worried about where her younger sister's chocolate is going.
Reprinted from "It's a GuP 4koma". (https://www.pixiv.net/user/28490623/series/232490)
Click here for "GuP ~What If Tankery Girl Masters Worked at a Convenience Store~"
https://www.pixiv.net/user/28490623/series/109618