I received my first paycheck, but I don't know what items are.

The kan can be read as four. Base salary is wages for the working hours specified in the contract; overtime, night, and holiday allowances are additional allowances for hours worked beyond the specified hours or for working nights and holidays; weekly holiday allowance is paid holiday wages received for working a full week; and deductions are money deducted from the monthly salary, such as taxes and insurance premiums. The additional allowance ratio and this year's minimum wage are under the 'Minimum Wage and Allowances' section. When paying wages, companies must provide a written statement (including electronic documents) (Article 48 of the Labor Standards Act).