Oplus2 (O+²) was founded by designer Otto Tang in 2015. Otto loves photography and always travels to overseas countries to shoot different landscapes and still life photos. He believes that every object has their vitality which can be observed from different angles by different people.

With the sensibility to create the perfect integration between nature and emotions in design, the Oplus2 (O+²) collections present the concept of 'The Capture of Life'. The design emphasises rich details and a minimalistic style, combining different graphic print designs, materials, silhouettes and sports elements to unveil women's vitality. Otto has been working tirelessly to create a series of works that reflect freshness and youthful spirits.

Otto Tang holds a BTEC Higher National Diploma in Fashion Design from the University of Saiford, and (BA) Hons Fashion Design from University of Huddersfield (First Honour). Otto joined veteran fashion designer Lu Lu Cheung's label to start and develop his career in fashion design immediately after his graduation. Otto assisted to create numerous acclaimed collections for Lu Lu Cheung, including several spring/summer and fall/winter collections from recent years. As a prolific young practitioner of fashion design, Otto participated in numerous fashion contests, and holds the notable distinction of winning outright the Young Designers Contest (Ten Best Collection) organised by the Hong Kong Trade Development Council in 2003, the Hong Kong New Collection Award (Overall Winner) organised by the Hong Kong Trade Development Council in 2005; and the Young Designer Talent Award 2007 organised by Hong Kong Design Centre.