SD3 Final Class upgrade?

how do you upgrade ro the final class? i know that you have to be atleast lv36 and need some sort of special item, and where can i do it coz all the mana stones are blown up? my party is Lise, Angela and Kevin all are on lv38

Thanks

Level 38 is the required level, actually. So yeah, you're there.

To get those special items, you must aquire ??? Seeds from treasure chests after defeating certain enemies. I had the best luck at the Jungle of Illusion nearby the Ancient City of Pedan. Try going after those purple-ish monsters (Boulders, I think?), and I guess it would not hurt to raise your luck stats a bit as well.

Also, after getting those ??? Seeds, plant them overnight at any inn. The type of item you get depends on what class change you will achieve. Needless to say, since everything is random, getting the class you specifically want can be a bit frustrating.

Also, the Mana Stone where you can do your Level 38 class change is only available at the Mana Holyland.

thanks