Record of Agarest War would be a good one, imo. SRPG, tons of gameplay, concept of the game is basically the same as a regular RPG except at the end of each generation the main character has a child that's different depending on who his mother is. This child then becomes the main character and this lasts five generations. It's EXTREMELY long, though; I put about 20 hours into it and didn't even make it out of the first generation. But it's a good bet that if he likes Disgaea he might like Record of Agarest War.
Haven't played Totori, but it's supposed to be Atelier Rorona with better gameplay. The Atelier games are traditional RPG's that focus on battle and alchemy. With alchemy, you basically transform the stuff you harvest from the wild and win from battles into other items, like healing potions or weapons. If you happen to know that he's played any of the Atelier Iris or Mana Khemia games and liked them, it'd be a good gift.
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"Duel audio? You mean like rap battles?" - termina_rzident
KrahenProphet and Kana are on opposite ends of the Awesome Spectrum.