Solve knocker puzzle
SOLVE_KNOCKER_PUZZLE14.7%

Achievements and their recorded unlock rates.
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SOLVE_KNOCKER_PUZZLESOLVE_FAN_PUZZLESOLVE_SHOGI_PIECE_PUZZLESOLVE_HIRAGANA_PUZZLESOLVE_HANA_DOLL_PUZZLEMEET_ERI_FIRST_TIMESOLVE_TUBE_LOCK_PUZZLESOLVE_FAMILY_CREST_PUZZLESOLVE_LIVING_SEAL_PUZZLESOLVE_ELEMENT_PUZZLERELEASE_HANASOLVE_BURNING_BOOK_PUZZLECOMPLETE_ACT_1