What is 'Hikikomori,' the Japanese phenomenon driving millions into loneliness?

While people worldwide are still recovering from the consequences of lockdowns and self-isolations amid the ongoing COVID-19 pandemic, a new phenomenon called "Hikikomori" is rapidly spreading in Japan. According to a government survey, Hikikomori, a phenomenon of social withdrawal, has sent nearly 15 lakh Japanese into insolation. Approximately 20% of the cases are attributed to the pressures of the coronavirus pandemic.