"I'm going to suck on your clitoris to help make it bigger, okay?"

Seira decides to go to a clinic to talk to a doctor about her worries concerning PMS (Premenstrual syndrome). There, she finds that her doctor is actually her old home tutor, Dr. Tsukishima.

She also tells him about her worries concerning something her ex once told her, that she's, "less sensitive because of her small clit", and is informed that there is actually a possibility of making it larger with treatment.
It's just, he wants her to come to the clinic after hours so he can perform the treatment privately...

And that's how Seira's treatment with Dr. Tsukishima begins.
Only, Dr. Tsukishima thinks that there's a chance he could hurt her if he uses tools so, he's going to have to suck on her clit with his mouth...

Official Translations:
English, S.Chinese, T.Chinese, Korean