How to Get Condensed Resin Blueprint Genshin Impact 

Condensed Resin maker is one of the most effective Gadget in Genshin Impact, to reduce the cost of the time by merging 2 Resin into a Condensed Resin, so you won't have too much time in using resin
If you're a new player, instead of level up Monstadt Reputation, I recommend you to do the Liyue first, just to get the Blueprint of Condensed Resin by doing Weekly Bounty Quest, Liyue World or Archon Quests, exploring, and doing NPC request.