Infertility is a major issue in today's Japan, and Yuuto and his wife Sakura are one such couple struggling with this problem. Despite trying to conceive every day for the past few months, they have seen no results. 'Hey, why don't we try abstaining for a month to build up thick sperm?' Sakura suggested, clinging to their last hope. Determined to have a child, Yuuto agrees to abstain. However, he has no idea that his mother-in-law is eyeing his almost bursting penis like a tiger ready to pounce...
