Ty Quest is going up

The first pic has the old one on top and the new one on the bottom, the second pic is the latest. Hidden quests didn't appear as deep as others (I think up to around Stage 6?), but the Ty Quest keeps going up, so it's quite appreciated. Once I thought the Ty Quest was over, but it respawned within a few days, which was a bit of a mystery and strange. Maybe it's because the game's behavior is a bit unstable after doing the Ty Quest.