Hololive: The Devil's Identi(t)ty (Patreon)

In the days before Towa's next outfit debut, she learned through Kanata's books that there's a way to fix up her dual genital dilemma. As this would rid the testosterone from her person and allow her feminine side to flourish, she misses how this would affect the growth of her assets, including how others would perceive her. And when the shaft fails to elave, she may have to make use of a genmate to relieve herself...

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My only note on this one is that I've been flip-flopping on whether or not to have the others call Towa by "-sama" or "-chan". I've seen "-sama" quite a bit from her peers, but to stay on the safe side I went with "-chan" for now. It might change when it goes public, however.