Rebirth: The Two-Dimensional Lottery System

Betrayed and transmigrated to another world, I thought I could show off my power, but alas, I died before my revolution could succeed. But then, I was reborn and gained a system! "Huh? Two-dimensional items can be drawn and exchanged at will? As long as you have enough points! Hey, and you can enter anime dungeons? How exciting!?" Playing house in the academy, I stroll through the elven forest at my leisure; catching a demon dragon and having to find it a wife? That's amazing! Easy peasy against foreign invaders! Ha, the other world, here I come!