We are aware of an issue where the quest "[1st Recovery] The Hope of Ring Recovery" could not be completed. Even if the player would provide the 30 Teleportation Scrolls, the NPC would repeat the same conversation and a string in Korean would be shown.
[UPDATE: November 4, 2021, UTC]
Players who experienced this issue can now purchase the Teleportation Scrolls again at the shop to complete the quest.