Enkou JK Bitch Gyaru - Oji-san to Nama Pako Seikatsu

Based on the erotic game by ZION.

An elderly man who felt lonely and tired working all day after the mutation in Tokyo. Suddenly he was approached by 2 Gyaru prostitute who invited him to have sex openly to release the old man's loneliness. 2 prostitute have their own way, the first prostitute had sex with a condom for 30,000 yen and the second prostitute should not kiss, but only to have sex for 15,000 yen.

(Source: Translated and Edited from Nekopoi)