exclusively reserved bath (found at ryokans)

a traditional Japanese inn

A stock phrase in Japanese pop culture supposedly used by the wife in a newly-wed couple to invite her new husband to bed.

reservation, booking / appointment; an arrangement for a meeting / subscription

reserve / make an appointment / subscribe

bath; bathtub

bath, the equipment used for taking a bath such as a private bathtub or public bathing area / a public bath, a public bathhouse / the room in which baths are taken, a bathroom (only for taking baths)

(chiefly women's speech) first person singular pronoun: I, me

(polite) first-person singular pronoun: I, me

a personal or private matter / (by extension) selfishness