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The Day I Orgasmed With Someone Other Than My Husband~ Blindfold oil massage that turns your whole body into an erogenous zone~

"I don't feel anything when my husband touches me, but why do I feel so much when his fingers touch me...!"
--Mina Mina, who suffers from frigidity, who is having trouble having sex with her husband. One day, Katsumi, her husband's brother and a masseur, invites her to try his "secret menu" to improve her insensitivity...
She is blinded by a mask, and her body unexpectedly starts to burn as the massage loosens her tight spots.
My brother-in-law's muscular body is covered in oil, and his fingers eventually penetrate inside me...
"Even though I have frigidity, and even though I have a husband... I was made to cum so violently that I wanted more..."

Chinese version (complete): https://e-hentai.org/g/2462166/e94ffe53d4/
English webtoon version (complete): https://e-hentai.org/g/2506122/367a10841d/