A certain scientific Saten Ruiko

"Hmph hum ~ hum hum ~ hum hum ~"

"Hmm~ The weather is really nice today~"

On a new day, Saten Ruiko stood at the door of the dormitory and stretched with a smile on her lips.

"Okay, now go to the supermarket to buy ingredients."

After closing the door to the room, Saten Ruiko went downstairs, planning to go to the nearby supermarket to see what kind of food she liked.

I bought a small cup of shaved ice on the way and ate it deliciously, enjoying the unique fun of summer.

"Hmm~ As expected, eating shaved ice with the breeze blowing in the hot summer day is very pleasant~"

"Ah, come on, give me my donuts..."

At this moment, a little nun in a nun's uniform shouted and returned her donut, lying on top of the sweeping robot and biting it hard with her teeth.

Isn't that Index? Saten Ruiko looked at the little nun passing by with some curiosity. She sighed in her heart at what a coincidence and at the same time looked around strangely. She was wondering, why is Kamijou Touma not there?

"Hey, that little nun in front of you, this is very dangerous~"

After giving the reminder, Saten Ruiko raised her foot and followed. Looking at the sweeping robot that had stopped and was spinning in place and the Index lying on it, biting fiercely, Saten Ruiko bent down slightly and smiled. asked

"May I help you, little nun?"

"Eh? Can you get the donuts back for me?" Index released her teeth on the sweeping robot after seeing the long-haired man she had never seen before, and then pointed angrily. Sweeping robot

"That's the damn thing that ate my donut."

"That's right, my name is Saten Ruiko. I don't know what your name is yet?" Saten Ruiko smiled and stretched out her hand.

"My name is Index, please give me some advice." Index shook hands with the other party first, and then glared at the sweeping robot angrily.

"Give me the donuts now."

"What's that? It's a sweeping robot. It can't understand what you're saying, and your donuts are probably inedible. If you don't mind, I can buy you some."

Seeing this cute little silver-haired nun Saten Ruiko looked amused when she offered to treat the other person to something to eat.

"Really? You are such a good person, Ruizi(?▽?)"

"Ahh... let's go."

She was struck by the bright light emanating from the other party's eyes. Although she was a little speechless that the other party actually called her name, she didn't care about it. However, this little guy was quite cute. He was only smaller than Teacher Xiaomeng is just a little taller.

……

"Thank you, I want more."

"Uh~ It's delicious..." Looking at the plates that were stacked two people high, Saten Ruiko was mentally prepared, but she still underestimated this little guy's appetite. This was simply a bottomless pit. Even after eating so much, the other person's stomach didn't become bulging. Could it be the legendary dimensional stomach?

Although it looks small, there is an extremely huge space inside like Doraemon's fourth-dimensional pocket?

"By the way, Index, you have a really good appetite. How much do you think you need to eat to be full now?" Saten Ruiko was really curious, can this little nun be full? After all, in the anime, this little nun's stomach never stops growling whenever she has free time.

"Well...I'm almost seventy percent full. I should be almost ready after eating a few more portions."

Index thought seriously for a moment, and then showed a cute smile. It seemed that she also realized that she had eaten too much. After all, she had just met a friend, and eating so much at once would probably scare him. Well, so I decided to eat less and stop eating if I ate more.

"It's okay, you can eat whatever you want today. I'm still curious about how much you can eat." Saten Ruiko had almost forgotten about going to the supermarket to buy things. She must know what the little nun's appetite limit is today. Where, after all, this was something she had been curious about when watching anime before.

……

"Ah~ I'm full. I'm so lucky to know Ruizi." Index rubbed her belly with satisfaction.

"No...it's nothing. Nice to meet you too."

Looking at the ten-meter-long bill in her hand, Saten Ruizi's mouth twitched crazily. This... this was really a meal that almost bankrupted her.

Looking at the price of the one at the end, although she can afford it now, it can be said that it cost her half a month of scholarship, and this is even when the boss paid zero. Of course, such a large amount was paid It's all the same without erasing the zeros.

"Ding ~"

It was the sound of the small money leaving her, and she swore that she would never say anything like asking Index to eat all she wanted again.

"Hey, Index~ where are you? Index~"

At this time, Kamijou Touma's voice came from not far away, and they also saw a somewhat troubled figure with a hedgehog head standing outside the store.

"Ah, it's Touma who's looking for me. I have to leave, Saeko. See you next time."

Seeing this, Index said goodbye to Saten Ruiko and ran out shouting "Touma, I'm here~".

"Oh~ I finally found you, Index. By the way, where did you go?"

"Touma, let me tell you that I met a good friend today and she treated me to a lot of food."

"friend?"

"Yeah, Leizi is a good person~"

"Leizi? Is that the name of the friend you know?"

"Hmm, yes, she is... Huh? Is she gone..." Index was about to reach out and point to the place where the two of them were sitting, but when she turned her head, there was no longer there. The figure of the other party.

"Hey, Kamijou-senpai, it's been such a long time."

"Ah, it's Ruiko." Index turned around after hearing the voice, and saw Saten Ruiko arriving beside her and Kamijou Touma at some point.

"Touma, Touma, she is my new friend Ruiko."

"Well... long time no see..."

Kamijou Touma is most afraid of this situation now. The other person is obviously an acquaintance of his, but because of his amnesia, he has no impression of the other person. However, in order to prevent Index from feeling guilty after noticing it, So I could only pretend to know each other and say hello.

"Speaking of which, Kamijou-senpai, what is your relationship with Index? It can't be... hmm?" Saten Ruiko smiled at the corner of her mouth. In this case, the other party obviously lost her memory, but this did not delay her and the other party at all. Just kidding.

"What are you talking about, Leizi?" Index didn't understand, and poked Leizi's arm out of curiosity.

"Well, um, Index is...a distant relative of mine, ha...hahaha..."

Kamijou Touma was complaining in his heart about how this former friend was a bit like his two best friends and at the same time, they had an unnatural relationship.

"Oh~ That's it~"

Saten Ruiko said meaningfully, and when Kamijou Touma was covered in cold sweat and Index looked dumbfounded, he suddenly burst into laughter and waved his hand.

"I was joking with Kamijou-senpai. Oh, by the way, I have to go to the supermarket to buy ingredients, so I won't be chatting with senior here."

"Ah haha... Okay, then..." Halfway through, Kamijou Touma was suddenly stunned. He didn't know what the other person's last name was. How should he call this? The other person called him Kamijou-senpai, and the relationship was obviously not reached yet. What to do with that level of calling people by their first names?

"Goodbye, tears."

"Well, bye Index."

However, after Saten Ruiko said goodbye to Index and saw Kamijou Touma struggling with how to say goodbye to her, the corners of her mouth were slightly raised.

"Well, Kamijou-senpai is still so forgetful. My name is Saten Ruiko, don't forget it ~ Goodbye."

"Oh, ah ~ Goodbye, Saten-san." Kamijou Touma was stunned for a moment, then he realized what he was doing, smiled and waved to the other person, feeling relieved in his heart. Did he have amnesia before?