This is proof that you've collected all 36 anomalous orbs. You've poked around in every nook and cranny, you've laughed, you've cried, you've questioned your assumptions... But you made it!
This is proof that you've battled a wide swath of enemies. By the way, the more of the same enemy you defeat, the more likely that enemy becomes to drop equipment with skills attached. Time for some population control!
Either on (at least) your 2nd playthrough or in Hard (or greater) difficulty, conquer the second fierce battle at Glaivend Basin without using any items!
This is proof that you've honed a certain Support Talent enough to be able to teach it to others at the inn. Those who can, do. Those who can even better, teach!
Either on (at least) your 2nd playthrough or in Hard (or greater) difficulty, conquer the fierce battle at Guinevere, the Shrine of the Wind Trial, without using any items!
Either on (at least) your 2nd playthrough or in Hard (or greater) difficulty, conquer the fierce battle at Morgause, the Shrine of the Earth Trial, without using any items!
Either on (at least) your 2nd playthrough or in Hard (or greater) difficulty, conquer the fierce battle at Lefay, the Shrine of the Water Trial, without using any items!
Either on (at least) your 2nd playthrough or in Hard (or greater) difficulty, conquer the fierce battle at Igraine, the Shrine of the Fire Trial, without using any items!
Either on (at least) your 2nd playthrough or in Hard (or greater) difficulty, conquer the fierce battle at Falkewin Hillside without using any items! It's a steep challenge, but you've got what it takes!
This is proof that you've witnessed the resolution of this story. Now you can try playing again with various changes to the gameplay, or you might venture into the daunting bonus dungeons.
This is proof that you've stayed at inns for a total of 10 nights. Resting at inns can give you extra skill effects in battle thanks to mysterious ingredients in the meals you're served. You can also engage in chitchat with your companions and restore your initial SC to 100. Such hospitality!
This is proof that you've earned the means to stand up against those whom you must. But beware... Your enemies are more powerful than you can imagine. There's no way to know whether you can triumph without confronting them directly.