If you notice the world smells like bubble gum, you’re not insane (probably - I don’t know you): it’s the blossoming season for Osmanthus fragrans, also known as “fragrant olive.” There are two subspecies distinguishable by flower type, silver (ginmokusei 「銀木犀」) and gold (kinmokusei, 「金木犀」) . The latter is much more common. Their flowers are very small but pack a fragrant punch and are sometimes used in Chinese cuisine. The fragrance is a harbinger of autumn. Wikipedia has more info. - William