CREATE TABLE table_204_696 (id DECIMAL, "issue" DECIMAL, "volume" DECIMAL, "title" TEXT, "main feature story" TEXT, "first/early appearance story/stories" TEXT, "release date" TEXT)

which has the largest volume number ?
SELECT "title" FROM table_204_696 ORDER BY "volume" DESC LIMIT 1
SELECT "title" FROM "table_204_696" ORDER BY "volume" DESC NULLS LAST LIMIT 1