DSOD-030 — "Dick brain lol" I gave a futanari drug to a haughty bitch who looked down on me, and she became addicted to the pleasure of ejaculation she had never experienced before, turning into a big-breasted gal who thinks only with her dick. - Sarina Hyakunaga

Sarina, a carefree girl, is a brilliant graduate student. Noguchi, a graduate student with lower academic standing than Sarina, is jealous and creates a penis-growing potion, which he gives to Sarina. The next morning, Sarina is shocked to find she has grown a penis. She becomes obsessed with penises and her body begins to ache...