It's been getting hot lately.

In this world, the seasons are similar to those in my previous life, and these days, as July ends, I sweat even with short sleeves.

The rainy season has ended, the days are getting longer, the mornings are bright, and the evenings are bright forever.

In my previous life, I was bedridden, so the summer heat was tough, but in this world, my body can move freely, so I don't mind sweating. I feel sorry for Reira, as I have asked her to avoid turning on the air conditioner as much as possible, as it can easily hurt my throat.

"I'm sorry, Reera."

"It's okay, Yuu, let's do what you like."

Yuu feels sorry for Reira, but to Reira, the summer heat is nothing.

In the Summer Mountain Unsupplied Important Person Protection Training Exam, which is part of the First Class Male Protection Officer Examination, the target of protection is a frail man in the humid summer mountains, and the two of them have to survive alone with a knife in a deserted environment. They survive for seven days while fighting off snakes, insects, and wild boars, obtaining water, food, and fuel, and helping the person she protects, as they aim for their destination.

Covered in rain, mud, and sweat, she has to protect and cheer up the person she is protecting, but the inspector randomly tells her that the person she is protecting has slipped and caused a fracture in his right ankle, that he has an unexplained high fever and dehydration, and that he is in a state of hysteria due to worsening paranoia. Additional unexpected accident situations such as these will be added, and measures will be required to deal with them. In some cases, she may have to continue training while carrying the person she is protecting.

For Reira, who has gone through such harsh training, the daily heat is nothing. In this world where global warming and the urban heat island effect do not exist, the temperature does not rise much even in summer, and all she has to do is be careful about dehydration and heatstroke, and always take preventative measures.

After all, on a hot day like this, we can only go to the pool. So today we came to swimming practice three times a week.

“Are you going to practice crawling today too?”

“Yes, Reera.”

Thanks to his growth and vocal practice, Yuu has become better at speaking, and he practices swimming in a small pool hand in hand with Reira.

Reira puts one hand on Yuu's stomach and supports him from behind, making him crawl while floating on the surface of the water. Since crawling is a swimming style that revolves around rotation of the body, support his stomach to make it easier.

"Your legs and hands are torn apart. Take turns putting your shoulders under the water."

"Yes" jabu jabu

"Be patient and don't force yourself to breathe."

"Yes" jabu jabu

"Don't rush, just hold your heart out."

"Yes" jabu jabu

Since Yuu doesn't have enough muscle strength to control his body, Reira slowly corrects him little by little. Eventually he becomes less 'swishing' and he is able to grab the water and kick it with his toes. He won't be able to do it next time, so he'll practice again. It's a repeat.

"I'll let go of your hand."

"Yes"

As it took shape, Reira let go of his hand that was placed on his stomach, and Yuu moved smoothly across the water's surface, saying, "Swee!" Yuu loved this moment. He has his eyes open underwater, so he can see he's going smoothly. It is not noisy underwater because his kicking motion and the motion of her arm reaching the surface and grasping the water are firm and gentle.

He stands up quickly because he can't swim very far since it's a small pool.

“You did a good job.”

"Yes!"

Yuu is in a good mood and crawls back to Reira in the same way, and Reira catches him.

Yuu looks like he's having a lot of fun going back and forth like that.

A pool without lanes gives them 30 minutes of "free time" every hour. During that time, they are allowed to bring in their own playthings. Yuu's favorite is the beach ball.

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When Reira threw the medium-sized colorful beach ball she had prepared to Yuu,he jumped with joy.

“Kyahaha!”

"Please throw it here."

"Yes!"

The two of them are having fun with beach balls. Yuu forgot about his past life, and he played with the innocence of a three-year-old child.

"It was fun?"

"Yes! Thank you"

They had such a conversation in the car. Even an ordinary day was an irreplaceable time for Yuu. The interior of this typical high-performance electric car is spacious and quiet, and does not shake at all. Yuu liked this quiet time spent with Reira on the way home from his pool.

When I returned to our house, Reira prepared a watermelon for me. Skip the seeds? I feels sorry for Reira cleaning, so I behave and eat. I'm still small and can't eat a lot, so instead of crescent moons, I munch on small pieces of watermelon.

It's afternoon now, but the wind blows through without turning on the air conditioner. Eating watermelon with the windows wide open gave it a summery taste and was delicious.

"Let's have fireworks"

Reira said something like this. As we were relaxing after dinner, Reira brought out a flashy fireworks set with a big smile on her face. Amazing! I've never done fireworks. In my previous life, I only saw it in pictures.

The two of them went out from the balcony and prepared buckets and candles in front of the house. This is on the first floor, so it looks like a garden.

"Okay, hold this. Don't point it at yourself or anyone else."

"Yes"

Reira gave me a thin stick with colorful paper wrapped around it. When I brought the tip close to the candle, sparks flew out.

"Wow!"

A lot of sparks of various colors came out and it was very beautiful. It was a little scary at first, but I quickly got used to it. As I stared at the spark, it eventually stopped appearing.

"Fun?"

"Yes!"

“Then this is next.”

After saying that, Reira gave me the next set of fireworks.

I lit it and looked at the sparks again.

As I was doing that, Reira also started setting off fireworks.

The two of us were so excited as we lit off fireworks and had so much fun.

“The rule is to do this in the end!”

For some reason, Reira seemed to have a lot of energy and started setting off small fireworks.

It's called sparklers. I've heard about it in my previous life.

"Okay, this will form a fireball ahead, but if you shake it, it'll fall right away. So you have to concentrate and do your best not to shake it."

It sounds like a penance, but it's fun, right?

Reira was serious, so I decided to brace myself and give it a try.

Jijiji...

The tip of the sparkler becomes rounded and after a while, sparks start flying out.

The dark orange sparks look like small flowers blooming and are very beautiful.

The strong light up until now was good, but these fireworks are very calming.

"Ah……"

Reira raised her voice next to me. When I glanced at it, it looked like she had dropped a fireball.

She is hanging her head a little. Is it alright?

I was able to finish safely without dropping any fireballs.

“It’s beautiful.”

When I said this to Reira, for some reason Reira said with more force, "Next!" and the two of us started lighting sparklers again.

The fireworks that Reira prepared for me felt like they were full of consideration from Reira, and were very beautiful and fun.

The leaves on the trees changed color and began to turn yellow and red.

This residential area for men, with its many parks and street trees, has become more colorful with the arrival of the autumn season.

Today, after studying and vocal practice in the morning, the two of us are going for a walk in the park.

"It's been half a year since the Sakisaka family's meeting started. Is there anything going on?"

"No, nothing. Everyone has fun stories to talk about, and Yaya is cute. Now that I've gotten to know more and more about their lives, it's easier to talk to them."

"Yes, that's good. I'm glad that Yuu is doing well with the Sakisaka family."

As usual, we walk hand in hand, gazing at the long shadows basking in the afternoon sun.

I felt that the big shadow and the small shadow represented the relationship between the two of them, and Yuu recognized his infant self once again.

"I'm doing well with Auntie Chikage."

"Hehe, that's good. She's also looking forward to meeting Yuu."

"I hope she won't make a big noise in the food court."

"That's difficult. I didn't expect that either, but it seems like that's the kind of person she is."

We both laugh. Yuu's smooth tongue had improved, and he was slowly able to speak like a normal adult.

"Are you okay to go home? Wouldn't it be better to stay home longer?"

``We're fine. My daughter is older now, and they have their own things to do. My daughter, like me, is aiming to become a male protection officer. She learned a lot.”

"……Thank you as always"

I wonder what kind of people Reira's family is like. The only family I've seen is the Sakisaka family, so I don't really understand. I wonder if everyone is the same way.

I'm sorry that Reira is separated from her family.

There are many brown birds floating in the pond. From time to time, they strolled along the edge of the pond, decorated with autumn flowers, watching the water glide along its surface.

As the peaceful time passes, he holds Reira's hand and walks on his small feet.

The two walked around the pond and headed home.