So like I'm not down with unsatisfactory endings and though I'm sure this is a great manga...

So like I'm not down with unsatisfactory endings and though I'm sure this is a great manga I'd like to know vague details on the ending so as not to be disappointed or get too depressed. Really the only thing I want to know before I read is does the main couple ever escape the brothel... I really don't want to see at the end that they both have to sleep with other people against their will for the rest of their lives so if anyone could enlighten me I'd really appreciate it