Fitch teams up with hugely popular indie artist Polyuretan, who has over 690,000 social-media followers, to adapt four stories from the collection “Lust.” Ao Ebisaki stars throughout: first, a couple ignores bells and shrine visits to fuck continuously through New Year’s; second, an icy female boss gets drunk after an office party and reveals a wildly sexual side; third, a defiant streamer secretly leaks juices and cums uncontrollably when touched; and fourth, a late-night nipple-guessing game with a languid senior turns increasingly erotic as long black nails tease sensitive nipples and every involuntary reaction encourages a dirtier smile.