ending is such a cop out. we could have had a coming of age story of self identity. nozomu, despite turning into a girl, still had the experiences and perspectives of being a boy, and vice versa for her(?) sister(?). we see her yearn for going back to a boy, not because she wants to be a boy, but because it is the path of least resistance. she does not want to accept her true identity because of the seemingly insurmountable conflicts that necessarily come with it.
but instead we got "its convenient to switch identities"