Miyu Takagi

"Wake Up, Girl Zoo!" is a small zoo located in the outskirts of Sendai. On the verge of closure, its director Tange and breeding staff Matsuda must set out to find a new animal unit for the zoo. How will they revive the zoo with the seven newly gathered animals? (myanimelist.net)

The anime personifies the Hackadoll app's customization engine as three "Hacka Dolls" -- the personal entertainment AI and main navigator Hacka Doll #1, the anime expert Hacka Doll #2, and the knowledgeable otaku Hacka Doll #3. (imdb)

Those that use "voice medicine, " the ability to heal injuries and cure illnesses with song, are called "healers." There are three first year high school girls are training after school to become full-fledged Healers. (imdb)