Ranking all the Genshin Impact 4-star catalysts: There is a 'best'
Twitter 上的 drew:"hakushin ring (the catalyst) you have to finish the whole sacred sakura cleansing ritual quest thing, quest starts somewhere close to the entrance of konda village. https://t.co/YoF67BQ7oK" / Twitter
Guide) How to get Hakushin Ring & Memento lens | Genshin Impact 2.0 - YouTube