In this opening episode a modern wanderer tumbles into feudal Japan and crosses paths with a curvaceous runaway princess whose bold curves and hidden longings spark heated public encounters. Elsewhere a substitute admirer becomes entangled with a busty cyclist whose daily downhill rides turn into sensual displays of big boobs and playful toys amid the open air. Meanwhile a science teacher introduces an aphrodisiac-laced experiment to his colleague, exploring her with glassware and teasing tools that awaken mutual cravings in uncensored hentai style.