Reincarnation, Overpowered Characters, Seinen, Romance.
Need I say more. Could anything else ever be more interisting?
I fear for those who have seen more anime than I have.
Still waiting on a S3 of Spice and Wolf, a S2 of No Game No Life and S4 of Overlord. Now if only they would make Demon Fist Daydreamer an anime...