Wind a Breath of Heart: Wakaba Fujimiya

 Wakaba is the co-adopted sister of Nozomi and is the birth sister of Minamo and Hinata. She is reserved and compassionate. Wakaba was born with weak clairvoyance and has the ability to heal.  She wants to improve her healing ability so she can fix Nozomi's heart.

Wind a Breath of Heart: Nozomi Fujimiya

 Nozomi is the sister of Wakaba and the two are waitresses at the same restaurant. She is skilled at kendo; however, she has a weak heart and can collapse if she exerts herself to much.