This is an original release from the artist of Sakura Trick, Tachi.
One last additional recruit to mention this time around – Welcome Firelily, a new QC’er!
[Gutstoma (Tachi)] Underwear x Swimwear (Original) [English] [Yuri-ism]
Download: Mega | Uploaded | Yuri-ism (DDL)
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Yuri-ism 
Tachi! 😀
so much blushing and cute ecchi xD
Yes Tachi, sequels please. This is more lewd than I was expecting, I wonder if Sakura Trick will begin heading in this direction as well. I would think not at first, because Kirara 4-koma, but then I remember the under covers breast kissing.
Best thing ever tyvm