Purchased from DLsite:
https://www.dlsite.com/ecchi-eng/work/=/product_id/RE273341.html
https://www.dlsite.com/maniax/work/=/product_id/RJ273341.html

Uploader's note: Archive did NOT come with a text-free version for some reason.

DLsite description:

Title: XXX with Futanari Senpai Wearing Woman's clothes!
Circle: room101
Release: Dec/31/2019
Series: With Futanari Senpai
Age Ratings: X-rated
Work Format: CG / Illustrations
File Format: JPEG
Language:
Genre: Otoko no ko, Knee Socks, Cross-dressing as a Woman, Futanari/Hermaphrodite
File Size: 58.23MB

Contents:
You get a phone call, inviting you out for a date.
You get taken out to the underwear store, a family restaurant, and a karaoke room.
Then sex happens.

11 base CG, 148 images
960x640 image resolution
JPEG format