Playlist @ https://www.youtube.com/playlist?list=PLvbfg-eXvFk9QPa7G7iiIOTt3v6qs91zt
Finally unlocked the recipe. I cut the parts where I was stuck on puzzle or farming ore. By the way, the weapon is called "天目影打" in Chinese and Japanese, which is listed as "Tenmoku Kageuchi" on Japanese websites. "天目" can be read as "Amenoma". I asked a Japanese friend and they told me that either is correct, depending on the user and situation. In the English beta, it was called "Amenoma Kageuta".
There are 8,408 views in 108 videos for Genshin Impact. This game accounts for over 4 days of watchable video on his channel, or 5.05% of the total watchable video for Genshin Impact on Random Stuffs's YouTube channel.