From a young age, she explored nature, both through her father's influence and her own participation in the Boy Scouts. One day, after making traditional crafts on a trip with her father, she developed an interest in making things from scratch. As a middle schooler, she played computer games, and when her father gave her a laptop computer at the age of nine, she became fully immersed in the world of the internet. During her junior high school years, she began to develop an interest in digital creative activities following exposure to illustration and game production (Wolf RPG Editor). She also developed an interest in traditional Japanese culture due to the influence of her mother, who was fond of flower arrangement, tea ceremony and kimono dressing.

In college, Kana bought a single introductory Javascript book at a local second-hand bookshop to start programming - something she had always been interested in. On holidays, she found herself working on it for seven hours straight, learning the basics in just three months. After that, she noticed self-study was limiting her and joined the university's programming circle (ICPC). Three months later, she designed and proposed ‘My Space’, a login bonus application for company employees and students. The idea blended healthcare with gameplay and was entered into a competition organised by Yahoo with her circle members.

After graduating from university, Ms. Watanabe worked as a web assistant in a digital advertising agency. She started her career in the SEO department, where she began to learn about the newest trends in SEO and rediscover the extent of the Google search algorithm. She also worked on building and optimising programmes for small and medium-sized companies to improve their operational efficiency.

After leaving her role at Starcraft, she reunited with Nadir, who was a fellow Dokkyo graduate . She was also deeply interested in the philosophy of connecting foreign countries with traditional Japanese culture and business. Wanting to contribute with her specialised field of technology, she ran for co-founding member of Made in Japan Products B2B, which exports traditional Japanese crafts overseas. Today, through the development of its own website (using a unique B2B enquiry system), the company receives enquiries from a variety of countries - from India, to South-East Asia to the West. She later became responsible for website and system/application development for both domestic and international companies in the newly established company J Leopard.