The Invisible Man and His Soon-To-Be Wife Vol. 3 (manga)

Private eye Tounome is a kind and dapper gentleman known for his unique extra talent--invisibility! While this attribute gives him a heads up in his career, there’s one person who always knows exactly where he is: his blind girlfriend, Yakou. The oddly compatible pair is still getting used to the throes of dating, and Yakou in particular is always disarmed by Tounome’s confident displays of affection. Their sweet office romance continues to unfold!