
Ohara Mayuka, 2nd year, received sperm collection duties for the SOD sample survey. Seeking valuable general male donors, she contacted people via SNS and carried out sample collection activities from west to east!

It's a semen collection thing, so there are a *lot* of fellatio scenes. Almost all the sex scenes are with clothes on, and it's just condom play after condom play.
The first time for sperm retrieval (=receiving oral sex and collecting the sperm) is with a company senior, and it's so erotic to see Ohara Mayuka saying "Isn't this awkward?" and "I'm a little embarrassed" while giving him a blowjob. The senior, due to his profession (?), seems used to it and casually says, "Haven't you seen my dick before?", while Ohara Mayuka starts the blowjob looking quite flustered... I almost gave this scene 5 stars on its own. By the way, the jacket photo is heavily edited, and she looks almost like a different person. But I prefer Ohara Mayuka as she appears in the main content over the unremarkable beauty on the jacket. Not being *too* beautiful adds to the realism, and it's more exciting in this kind of work. I hope they don't edit the jacket photos so much in future releases.
I really wanted to see her just talking normally in a suit. I got to enjoy exactly that this time. Ohara-san is so beautiful. The background from the visit was great. This made me buy it immediately. Her speaking pace is perfect, and her voice is so soothing. Ohara-san is a total dream.
After the fellatio, she keeps going back to the car to ejaculate into a test tube, which really kills the momentum. They should have shown the semen in her mouth immediately after ejaculation. Semen turns from white to clear over time, and it thins out when mixed with saliva. Next time, they should work right there instead of going back to the car – it would be much more erotic. Also, the test tube is too small. They should use a bigger one and make the insertion into the test tube more… suggestive.