Meet Mera again

When you came to Room 302, you heard Mera talk: "Sorry, my specialty is andrology. If you want to find an OB-GYN, I can introduce you to my close friend - Winry Rockbell."

You coughed: "Ahem... Hope I don't disturb you."

Mera glanced at you: "Izumi, promise me that you don't bring your student with you when going to meet Winry. I want her to be my midwife and I don't like that she would have a maternity leave when I'm about to give birth."

You pretended to not hear her word, said to Izumi: "Master, can you go home alone first? I need some advice from Mera."

Izumi nodded.

When you're sure she left the building, you turned to Mera: "Your joke is not funny."

"You think I'm joking? The two fetuses I'm carrying right now say different about your ability to impregnate girls. Besides, do not think I don't know what you did to Riza."

"You knew?"

"I'm a doctor. Now, what advice you need from this doctor?"

"I want to ask you what is the best way to store sperms for a long time but they still keep their potency?"

Mera gave you a strange look, but she still answered: "The best way is to keep them frozen, but you need a special refrigerator like this."

She pointed to a small cabinet.

"Where can I buy this?"

She shook her head: "Only Northern Region can produce it. Their technology is exclusive."

"Thank you."

Out of the room, you murmured to yourself: "Now I know what I should ask from Riza."