https://legalassist.co.uk/tier-4-visa/
International students who wish to study in the UK must apply for a Tier 4 Student Visa. This visa permits full-time study at a licensed UK institution. Applicants must provide a Confirmation of Acceptance for Studies (CAS), meet financial requirements, and demonstrate English proficiency. The visa duration aligns with the course length, and students may work part-time under specific conditions. Extensions are possible for further 勉強します。