El hombre invisible y su futura esposa, 1

The boss of the detective agency where Yakō works is Tōnome: an intelligent and kind "invisible man." Even when he becomes completely invisible, Yakō, a young blind human woman, always knows where to find him. Drawn to the fact that she is blind, Tōnome insists on accompanying and helping the slightly obtuse Yakō…? While her peculiar coworkers look out for her, today she also goes about her duties as a secretary, her face flushed.