Watched the opening.
Gathered a party of four.
Cleared the Bronze Cup at the battle arena.
Cleared the Silver Cup at the battle arena.
Cleared the Gold Cup at the battle arena.
Cleared the Maid Cup at the battle arena.
Cleared the Gazillion Challenge.
Obtained the "A Deity's Legend" ending.
Obtained the "Last Dream" ending.
Obtained the "Promise of a Distant Day" ending.
Obtained the "Awakened by a Kiss" ending.
Obtained the "He Who Watches Over the World" ending.
Obtained the "Just the Two of Us" ending.
Obtained the "Together Forever" ending.
Obtained the "Millennial Crush" ending.
Obtained the "Our Beloved Izayoi" ending.
Found all the stray sprites.
Cleared all subquests.
Found all treasure chests.
Crafted a weapon with a rank of 999.