Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2144389_8 (_number INTEGER, japanese_title VARCHAR)

### Question ###
Name the least number for  君のそばで～ヒカリのテーマ～(popup.version)

### Accurate SQL ###

SELECT MIN(_number) FROM table_2144389_8 WHERE japanese_title = "君のそばで～ヒカリのテーマ～(PopUp.Version)"