NIMA-007 [Vietsub] Insane grandfather thought his granddaughter was his wife

Growing old and confused or losing his mind, the grandfather mistakenly thought his niece was his wife, looking young and beautiful. Because she loved him and didn't want him to be sad, she took care of him, even though she was old and weak. It's hard to make her climax, but maybe that's a wrong thought

NIMA-007 [Vietsub] Insane grandfather thought his granddaughter was his wife