Mimei's on-air name (ラジオネーム) is 森にふくろう/Mori ni Fukurou which takes from his name 梟森未明 (Fukumori Mimei) which has "fukurou" (owl) and "mori" (woods/forest) in it. Also 未明 is "not yet known" or "unknown" which pertains to him not having his mail read yet.
