You get this sequence after making it through the absolute hardest and most annoying optional dungeon in all of the .hack//G.U. games, specifically in vol. 3. I thought it was worth the effort because it's an epilogue or true ending to the game. Very sweet stuff.
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That's some serious platonic love there. You don't talk like that unless it's serious business. <3 This is apparently the answer to Haseo's wish. Food for thought, haha. Ovan is just too awesome. ;A;