Which Romaji Title has a Japanese Title of 2 ?
CREATE TABLE table_63168 (
    "Japanese Title" text,
    "Romaji Title" text,
    "TV Station" text,
    "Episodes" real,
    "Average Ratings" text
)
SELECT "Romaji Title" FROM table_63168 WHERE "Japanese Title" = '花より男子2（リターンズ）'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Which Romaji Title has a Japanese Title of 2 ? ### Input: CREATE TABLE table_63168 (
    "Japanese Title" text,
    "Romaji Title" text,
    "TV Station" text,
    "Episodes" real,
    "Average Ratings" text
) ### Response: SELECT "Romaji Title" FROM table_63168 WHERE "Japanese Title" = '花より男子2（リターンズ）'