Horoyoi♂♀Switch: Kaseifu no Jouzu na Tabekata

Aoi is a freelance writer who has always been too busy to learn how to take care of himself. To solve this problem he hired a housekeeper, Touya. They hit it off and now they're good friends. However, their relationship is a source of stress for Aoi, who is worried that Touya will see him differently if he reveals his true feelings. Another problem for Aoi is that his gender switches the moment he drinks alcohol! Could this be his secret weapon for winning Touya's heart? Bewildered by his own insatiable body, Aoi can't keep his feelings at bay!
(Source: Renta!)
Note: Chapter count includes one extra from the volume release.