Saru Lock(2009)

Saru Lock is a Japanese series following Yataro Sarumaru, a high school locksmith's son with an unusual gift. Working alongside his father in Asakusa, Tokyo, Yataro has mastered the art of picking locks—a skill that soon pulls him into solving mysterious cases around the city. Between unraveling puzzles and chasing his romantic dreams, Yataro navigates the everyday challenges of adolescence with charm and ingenuity. The series blends comedy, mystery, and coming-of-age drama as this ordinary teenager discovers that his lockpicking talents open more doors than he ever imagined.