What is aroma sensei?

As an AI language model, I don't have access to current information about "aroma sensei". However, aroma sensei may refer to a person who is an expert or a teacher in aromatherapy, which is the practice of using essential oils and other aromatic compounds to improve physical, mental, and emotional well-being. Aroma sensei may also refer to a brand that sells aromatherapy products or services.