故事讲述了一个名叫敏雄的男性,他在东京生活了几年,但生活却一直不如意。敏雄相貌平平,不善于与人交往,即使偶尔交到女朋友,也因为早泄的问题而难以长久维持性生活和感情关系。然而,敏雄家族是伊贺忍者的后裔,他们传承了一种古老的秘传药物。这种药物据说只需服用一颗,就能让女性为之倾倒,同时让男性变得绝伦
有一天,敏雄的祖父突然去世了,在遗留物中,他找到了这个秘传的药物。敏雄回到东京后,立刻前往六本木的一家夜店,试图尽情享受药物带来的力量。他变得持久而有活力,享受着与女性员工们的纷纷纠缠。然而,在与新来的女孩美沙发生关系后,敏雄的命运发生了巨大的转变。
因为过于自信,敏雄不慎多服了一颗药物,结果发现自己变成了透明人。这个突如其来的变化让他陷入了巨大的困境和困扰。
The story is about a man named Toshio who has been living in Tokyo for several years, but his life has been unsatisfactory. Minxiong looks mediocre and is not good at communicating with people. Even if he gets a girlfriend occasionally, it is difficult to maintain a long-term sex life and emotional relationship because of premature ejaculation. However, the Toshio family is descended from Iga ninjas, and they have passed on an ancient secret medicine. It is said that just one dose of this drug can make women fascinated and men perfect
One day, Toshio's grandfather passed away suddenly, and among the remains, he found this secret medicine. Immediately after returning to Tokyo, Toshio heads to a nightclub in Roppongi, trying to enjoy the power of the drug. He became persistent and dynamic, enjoying his stalking with female employees. However, Toshio's fortunes take a drastic turn when he has a relationship with a new girl, Misa.
Because of being too confident, Minxiong accidentally took an extra dose of medicine, only to find that he became a transparent person. This sudden change made him fall into a huge predicament and distress.