Reina gets a boyfriend and it makes Rin wonder about her own lack of a love life.; Daikichi sprains his lower back at home and begins worrying about his mortality. Saionji badgers Masako to marry him now that she's pregnant with his child.; Rin places an order for copies of her birth certificate in order to find out her birth mother's name, without Daikichi finding out - - she hopes.; A reluctant Daikichi arranges a meeting between Rin and a reluctant Masako.; Rin has a tense reunion with her birth mother.; Rin gets an explanation of what being a mother means from Yukari and it gets her wondering about her birth mother.