Hakoniwa no Reijou Tantei
AUTHOR: TACHIBANA Shinnosuke
ARTIST: OKAZAKI Oka
TAGS: 21St CenturyBased On A NovelButlerDetectiveDetermined ProtagonistFood LureHigh School StudentInsomniaJapanOverprotective FriendParanormal InvestigatorQuirky CharactersSearching For SomeoneSeeing Things Other Humans Can'TShort Female LeadSmart Female Lead
From MangaHelpers: While looking for a ghost that helped him as a child, Satou Akira has run into a fair amount of spirits that he doesn't even see. One day, he goes to a supernatural detective agency for help, and he meets the adorable Yui and her devoted butler Kujou. Using her power, Yui ends up helping him with a number of the dangerous supernatural troubles he gets himself into. Akira starts to feel attached to the detective agency, and wants to learn more about the supernatural.