In a residential area, there is a nationwide convenience store called "Eight Ten". I, Yoshito Sanada, a high school student, work there part-time because I can commute there by bicycle from home and to buy a high-performing gaming PC.

I've heard that convenience store workers are often shunned because of their bad reputation. It's a busy job, there are a lot of annoying customers, and there's a lot to remember, but where I work is surprisingly easy. Maybe it's because it's in a quiet residential area where there aren't many people. I also heard that the area in front of the station and in front of the school is very busy.

So I'm able to work leisurely with no stress at all. But if there is a problem with this part-time job…it would be the presence of this person.

"Hello, Sanada-kun~ You're so cute today too."

I was getting ready for work in the lounge of my part-time job when "Tsuchiya"-senpai came in just in time before she was late. Tsuchiya-senpai is a second-year university student who started working here a year before me. Our shifts often overlap, and it has become something of a routine for the two of us to run the shop together in the evenings.

She has lovely bobbed brown hair, slender arms and legs, and a face so neat that she attracts attention on the street. And above all, her b*****s are so well-shaped that you can't help but look at them. To be honest, Tsuchiya-senpai is extremely pretty. I don't want to tell you this, but when I first saw her, I was so nervous that my heart almost burst.

But I'm treated like a child by this person. Maybe it's because I'm in high school and she's in college.

"T-Tsuchiya-senpai! Good job getting here… B-But calling me cute is unnecessary!"

"Even though it's true… I'm sad that Sanada-kun has started rebelling."

"I'm not rebelling! Why does senpai say I'm cute in the first place!?"

"Hmm? Well, that's because Sanada-kun is cute."

"T-That's not an answer!"

"Don't care about such details. There you go, there you go."

"Huu…"

Tsuchiya-senpai gently rubs my head to calm me down. Ah, this pattern again. I get rolled around in senpai's hands like this and end up being talked down. It's exactly the same scene as an elder sister soothing her tormented younger brother.

"Okay, you're settled. Let's get to work then. Well, it doesn't look like we'll get many customers today, so let's talk a lot."

"T-That's fine. But let's just stock up on enough items so the manager doesn't get angry at us for slacking off again."

"OK. Let's see who can finish stocking up faster, Sanada-kun. If you lose, you get to buy me an ice cream. Well then. I'll go check on the noodles."

"There's hardly any reduction there, so of course, senpai is going to win!"

"Ah, you got me. Ah, welcome."

When a customer arrives, the slack-jawed atmosphere of Tsuchiya-senpai changes, and she begins to serve the customer in a friendly, solid manner. The fact that Tsuchiya-senpai is surprisingly reliable is one of the good things about her.

…Well, I actually don't mind my current relationship with senpai. I'm happy that the lovely Tsuchiya-senpai talks to me like this, and I'd be lying if I said I wasn't interested in Tsuchiya-senpai above all else. So just being able to spend time together like this is more than enough for me.

But I still want senpai to see me as a man! I'd rather be treated as a man than as a child by senpai! I have prepared a secret plan for that today.

"Hmm, I'm bored. Oh, Sanada-kun, is your shift going to end earlier than usual today? I'll feel lonely, you can extend your time, right~?"

After a while. Two minutes before I was to finish my part-time job, senpai said to me something like that.

I'm kind of glad to hear that because I usually work another hour and get off at the same time as her.

"Yes, that's right. I put in the wrong shift."

That's a lie. The truth is, I got my shift changed on purpose.

"Eh? But I'm glad. It doesn't seem that Sanada-kun doesn't want to work with me. I like working with Sanada-kun."

"Eh!? T-Thank you…"

"Ah, you're embarrassed. Sanada-kun is really cute~"

"S-Shut up! I'm leaving, it's time to go. Thank you for your hard work."

"Yeah, good job!"

"Ah, Sanada-kun, are you buying Coke again? If you drink it in moderation, you'll get pudgy and fat… EH?"

Tsuchiya-senpai widened her eyes and choked on her words when something unexpected was placed on the table. It's probably something that couldn't be helped. Because I'm about to buy a 0.01mm condom.

"This please."

"…T-This… I-I…I think it's too early for Sanada-kun…"

She was more startled than I had imagined, and I had never seen Tsuchiya-senpai like this before… I feel sorry for her, but I've prepared myself for this.

"No, it's not too early. I'm not a kid anymore."

Yeah, I wanted to show her I'm not a child. I can't buy alcohol or cigarettes, but I have no problem buying this… I don't plan on using this at all, but I just want to show off!

"…H-H-Hee~… S-Sanada-kun has a girlfriend… S-Since when…?"

"Only recently."

I lied without hesitation. I've never been confessed to. Somehow it makes me sad to have said that. But aren't you too startled, senpai? To be honest, I thought she would laugh at me, but if she's reacting like this, I feel guilty… No, if I say it was a lie here, my courage today will be meaningless. I need to stand my ground here!

"Ah… I see…"

"Well then, I'll take that."

"T-Thank you for your hard work…"

Like that, I bought a condom in front of senpai. Of course, I have no plans to use this, so I plan to dispose of it somewhere, but I didn't expect to see such a reaction…

Now, this should make senpai see me as more of a man. All right, I'll do some more muscle training when I get back!

"…S-Sanada-kun has a girlfriend… H-He's got a nasty insect… S-Sanada-kun's virginity…h-has been taken away…even though I've been after it for a long time! …N-NOOOOOOOO~~~!!!"