GVG-298 Reiko Kobayakawa, a compliant mother-in-law who is playd by a horny brother and sister

Reiko, who lives with her daughter, remarries a man who has a son. The daughter, who has been rebellious against severe discipline for some time, colludes with her son-in-law to hunt down Reiko. When it turns out that Reiko used to work in customs, she confined and detained Reiko as a threatening material. Reiko falls into a compliant sex toy due to training by her son-in-law.