Quick answer — Naru Nanao worked on ef ~ A Tale of Melodies (Original Character Design), ef ~ A Tale of Memories (Original Character Design), sola (Original Character Design) and 2 more anime.
Naru Nanao worked on ef ~ A Tale of Melodies (Original Character Design), ef ~ A Tale of Memories (Original Character Design), sola (Original Character Design), ef: a tale of memories. - prologue (Original Character Design), D.C.~Da Capo~ (Original Character Design).
