The brother-in-law was secretly watching the sister-in-law changing clothes.

The brother-in-law already knew that the sister-in-law was going to change clothes, so the brother-in-law quickly came to the sister-in-law's room and hid and waited for the sister-in-law's arrival, in a while the sister-in-law came and started changing clothes, all this the brother-in-law was secretly watching, then the sister-in-law caught him in the hands of Rang.