It was a holiday, so the aquarium was reasonably crowded, but after standing in line for a while, we were able to safely enter.

The first exhibit space was a cluster of several columnar tanks, in which jellyfish were housed, illuminated by black lights.

In the dark space with black as a precious color, blue, pink, and yellow lights illuminated the jellyfish, creating a fantastic atmosphere.

I couldn’t help but mumble.

“I should have done a field trip when I was in elementary school…”

“What’s wrong?”

Rei-san said to me curiously.

I smiled.

“I didn’t get the impression that it was such a fashionable place.”

“I heard they changed the atmosphere a lot recently. It looks like a date spot, doesn’t it?”

Rei-san chuckled.

It is certainly true.

I think I understand why she wanted to come here.

At that moment, Rei-san intertwined her fingers with my hand and looked up at me sweetly.

“We’re on a date too, aren’t we?”

“Yes.”

I smiled at her, and she looked happy and relaxed her cheeks.

… I just have a small problem.

I’m not sure if I should tell Rei-san or not.

I looked at the chest area of Rei’s white turtleneck.

“Th…, Rei-san.”

“What?”

“Your underwear is showing.”

“Eh?”

Rei-san hurriedly looked at her own chest and quickly blushed.

The reason why this is happening is because of the black light.

The underwear she was wearing inside her white turtleneck was shining under the black light, making it stand out in a strange and clear way.

I had read in a book before that some detergents contain fluorescent paint, which I think reacts to black light. 

Rei-san’s face turned even redder when she noticed that her underwear, both top and bottom, were glowing and transparent.

“D-Don’t look! Haruto-kun!”

“Uh-huh.”

My eyes swam.

As Rei-san said, we had taken a bath together before, and I don’t think it was too much of a surprise now.

But it was probably unexpected for Rei-san, and I could understand her embarrassment in this situation.

Rei-san looked at me with teary eyes and then suddenly moved closer to me as if she had made up her mind.

The next moment, Rei-san was hugging me from the front.

“Ah… that? Rei-san?”

“If we get close to each other like this, Haruto-kun won’t be able to see, right?”

“That’s right, but……”

For me, this feels more embarrassing.

As I felt the softness of Rei-san’s b*easts, I vaguely thought about how they had been glowing just a moment ago.

Rei-san’s sweet scent wafted through the air.

I felt as if I wanted to stay like this forever.

But that’s not going to happen, and when I move, I’ll have to move away from her, so I’ll have to see again.

Besides, even in her current state, the other guests can see her.

Somehow I feel many eyes on us.

Rei-san is a beautiful girl in everyone’s eyes, and she also stands out a lot because of her silver hair, white and clear skin, and foreign appearance.

It is no wonder that such a girl would attract attention if she were in such a state of undignified (?) appearance.

I didn’t like the idea of Rei-san being seen by other men, so I suggested to her that we go to the next exhibit.

But she shook her head.

“I want to stay here a little longer.”

“But…”

“The jellyfish are beautiful, and … Haruto-kun is warm too.”

Rei-san nuzzled her cheek against my chest.

Indeed, I feel that it is not bad to feel Rei-san’s warmth.

Although I was concerned about the stares around us, there were many other couples there.

And even if other men were watching, I was the only one hugging Rei-san right now.

I gently hugged her back, and she murmured a small “Thank you” and smiled beautifully.