I am an experimental physicist, who is interested in the physics of the early universe. My current research subject is the verification of inflation theories by the observation of the cosmic microwave background (CMB) polarization. More specifically, I am working on the instrument design for the LiteBIRD project, which is a future satellite to be launched by JAXA. I also study the development of the optical instruments towards the next-generation CMB observations. I am looking forward to interacting with researchers from various fields at IPMU.