The bond between sister and brother is put to the test! In front of the brother entering the room where his restrained sister waits, there's a mission: '100,000 yen for every time you make your sister come' and adult toys! The mission to make her come, which was initially supposed to be for money, ignites the brother's lust as he watches his sister's facial expressions each time she comes from the toys. The two end up crossing the forbidden line of incest! Every moment is fully recorded!
