Chichi no Jikan

Chichi no Jikan follows Shinogi Kyuuichi a male biology student who lives in an apartment near a helpful female neighborfriend Takarai Ayaka One day he is visited by aliens who demand that he raise their baby for a year or else the world is history The baby is apparently human and is raised the way humans are through breastfeeding Kyuuichis sex is not a problem for the aliens they give him a simple device that switches his body to a woman with the mere touch of a button Conveniently Kyuuichis female form is very wellendowed
Although shes understandably confused and uncomfortable by the whole situation Ayaka helps Kyuuichi out as he navigates the unfamiliar experience of raising a child and breastfeeding it in particular That means going to a store to buy a breast pump visiting a maternity hospital to get a massage to release Kyuuichis storedup milk and giving the baby a bath together Kyuuichi as a biology student is fascinated by the whole thing from an academic perspective