Today, it was unusual that there were few requests for dinner, so Saya finished shopping early and waited for the two of them to come back while cooking dinner.

"I'm home."

At that time, Shia, who is waiting, came home saying so. Saya asked Shea because she thought it was unusual that the two of them should always come back together.

"Lana, aren't you with Shea today?

"Eh!?

Shia, who always had sleepy eyes, was swimming and clearly upset.

"Mother... what are you talking about? I...."

"It's Lana, right? You can't fool my eyes."

"... hah... I knew it wouldn't make sense to my mother ~..."

Say that, turn around from your sleepy eyes, and return to your bright, active eyes, Shea Lana.

"What? I knew you'd find out.

Now Shea, with her sleepy eyes, opened the door and came in. Looking at those two, Saya thought that this was the usual bullshit between the two.

Lana and Shea, Lana are bright and sociable, Shea always has sleepy eyes and quiet, and the two personalities are diametrically opposite, but the two are twins so they look socky. So they often make fun of each other and deceive the people around them.

"I could have fooled that Aroma the other day ~... Mom's not the only one who can fool me."

"Really, Mother, do you have any tricks to tell us apart?

Shea asks Saya that with her sleepy eyes, but with an intriguing attitude. The same goes for Lana next door. But no matter how much they expect, Saya has only one answer.....

"That's not true. Just so you know, I'm your mother."

Asari and Saya answered. Saya finishes the conversation by saying that dinner is over for two people who are somewhat dissatisfied with the answer.

(Phew ~... you were right about what was written in "Introducing Twin Childcare for the First Time".)

While Lana and Shea were preparing dinner, Saya remembered what happened nine years ago....

Nine years ago, Saya made a steady request, carrying Lana and Shea, stopping by the usual bookstore and looking at the corner of the "First ○ ○" series....

"Nh...? Here!? This is hah!!?

What struck Saya was "Introduction to Twin Childcare for the First Time." As soon as she saw it, Saya bought the sole at a high speed, hurried home to the lodging she was staying in, and quickly started reading the sole. But in the first sentence, Saya was shocked.

"Parents who can't identify their twins don't like them first."

It was a very painful sentence for Saya. How do I avoid that? Turning the page to find out....

To observe the two children carefully. Even if you say twins, there is always a difference. And always write down the observation record. "

After reading the sentence, Saya quickly moved on to action, bought several notebooks, carefully observed Lana and Shea, and wrote down her observations in the notebook.

(Oh? Lana's hair has grown by 1mm more than that of Shea. Shea... seems a little bigger than Lana. This should also be noted in the notebook)

After careful observation of her daughters for nine years, Saya gained a really good "observation eye" skill, but that skill was still never used except by Lana and Shia....