RCTD-461 - Brain-melting aphrodisiac training for my innocent sister

Mao Watanabe graduated from university the other day. And sadly, she has also retired. This work is about her being soaked in aphrodisiacs by her brother, played by Makoto. Despite the title 'Brain Bug,' it's a somewhat soft aphrodisiac-themed work. Her acting as she becomes sensitive from the drugs is excellent, but she doesn't completely break down. The 'ahegao' is restrained, and the training is pretty standard. Well, it hits the right notes, so it gets a passing grade. Rather than the aphrodisiac stuff, the final sex scene, where she seems to be genuinely releasing her emotions, is the real highlight. As a graduation gift for her Waseda University degree, I'm giving it a generous 5 stars.