Every way to get Return Scroll (Bound): 4 quests, 4 merchants, 5 chests and the shop.
Episode quest
Verteron, 1,000 Kina
Poeta, 1,000 Kina
Altgard, 1,000 Kina
Ishalgen, 1,000 Kina
Opened from this chest
1,000 Kina