The departure of Tareq Amin, the man behind Rakuten Mobile's technological innovation, has raised questions about the reasons behind his sudden exit. As the Co-CEO and CTO of Rakuten Mobile, Amin played a pivotal role in developing the world's first fully virtualized cloud-native mobile network, offering high-quality communication services at affordable prices. Amin's extensive engineering background and successful projects, such as building Reliance Jio's virtualized mobile network, led him to lead Rakuten Mobile's communication infrastructure efforts. While the official reason for his departure is cited as "personal reasons," there are speculations about differences with Chairman Hiroshi Mikitani and his sale of Rakuten Mobile shares. The future course of Rakuten Mobile's technological innovation and its response to Amin's departure remains to be seen.