The next day, I used the golden key again in the saloon of the mansion.

　The door leading to that room appeared, and the number that had been '00' yesterday was back to '02'.

''Oh, it's back,''
So it's back to normal every day.

　Emily and Elsa were in the salon and they were excited to help me with the test yesterday.

'Seems so, the number of keys is the number of people you can get in for a day. Once you get in--'
I could have stayed here all day.
'There was a clock inside. We didn't get out until a full day after we got in.

　I nodded at their explanation.
　I hadn't gone in yet myself, but along with Alice's explanation before, I found out that apparently once you go in, you can spend a day's worth of time inside, but you can't come back here until a day has passed.

　And.

'So a day inside is about a minute outside. That's useful,
That's a great help when you have a deadline to meet or a deadline to meet.

　I nodded clearly at Elsa's words and showed my agreement.
　Looking at that Elsa, I was reminded of something.
　Elsa, the seconded clerk of the buyback shop "Swallow's Benefit".
　The manager of the buying sub-branch, which is connected to our magic cart with a transfer function.

I'm not sure how to transfer the magic cart. Can we use it to get in and out?
I'm going to try.
Well, let's test it out.
Yes, sir. I'll go, then.
Are you sure?
I have something I want to do, too.
I see.

　I don't know what I want to do, but if Emily says so, I'll leave it to her.
　I handed her one of the keys.

'Then I'll go get the magic cart or something ready.

　She took the keys, thumped her slippers and walked out of the salon.
　She waits there for a while, though.

...... not coming back.
'Yes, ...... No, I think I'm already in.'
'What?　It's true. The number is '01'.

　We looked at the door in front of us together.
　The number that had been '02' earlier had been reduced by one to '01'.

'I see. ...... If you have the key, you can get in from anywhere. Is it connected inside?
We were connected. I came in later yesterday, and I got to meet Emily.
"Hmmm ...... would be ...... one for each of us.

　After putting together a list of performance data, I decided
　I'm going to give it to all my people, and I'm going to give them a key to get in from anywhere.
　In case we need to use it to get together.

　I'd better get the keys until we have one of each.

　When you say that, boom!　I heard a sound from a distance.

'This sound is ......'
A sub-branch. Well, if you're not coming back, what's the point of waiting here in the first place? The magic cart will transport you to the sub-branch.
Yes.

　I headed to the sub-branch with Elsa, who nodded.
　Then there was Emily's hammer there.

　The hammer popped out of Emily's magic cart transfer port and lay on the ground.

''I'm home.''

　After we entered the sub-branch, Emily came in a little later - or almost at the same time.

'You're fast ...... or has it been a minute already?'
Yes, I've been inside all day - it's a strange feeling.

　Emily entered the sub-branch and lifted her hammer with a flourish.
　She's 6'3" and yet she nimbly carried a giant hammer, still with tremendous power.

'Indeed, this one just left us a minute ago, and from Emily's point of view, it's been a day.
Yes, sir.
Couldn't you have come out with a magic cart?
It didn't work, sir. I just need to get the stuff to work.
I see. ......

　I was hoping to be able to come and go as I please, but it doesn't seem to work out that way.
　............ Nope.

'I'm gonna go run some tests, you two stay here and watch.
Yes, sir.
I understand.

　I left the sub-branch and went to get my own magic cart, then used the other key I had at hand to get out the door, which was '01'.
　I opened that door and walked in with the magic cart.

'Whoa!'

　I was so grandly surprised that I felt like I was going to turn over.
　Behind the door, in the empty space, there was a temple-like vibration.

　It was bright and warm.
　A very peaceful space.
　I know this feeling - I know it!

Emily ...... cleaned up and went?

　First the ramshackle apartment, then the two bedrooms, and now the mansion.
　In the same way that everything had become a peaceful space when Emily took charge of the house, this place had become an amazing thing.
　So what I wanted to do was to clean.

'But ...... is awesome, Emily.

　I was a little bit impressed by the scene in front of me.

　Oops, I can't just be impressed, now it's time for a test.

　I stopped the magic cart that pushed me and put a lot of normal bullets away.

　Then I kept my distance and waited.
　After a while, a slime hatched from normal bullets.

　Regular bullets made from sprouts, which hatched into more slime.

　The slime attacked, I shot it out with a growth bullet.

　Then the slime dropped the original normal bullets - and a crystal.

　The ring on his right hand, the ring dropped by the dungeon master of Nihonium.
　An item that, when equipped, has the effect of embodying the excess experience value into a crystal after a level canst.
　You can use it to "save" experience and pass it on to others.

　I threw the dropped regular bullets into a pile of regular bullets at a distance, put the crystals into a magic cart, and transferred them.

　More slime hatched, attacked, shot out and made into regular bullets and crystals.
　I put the regular bullets back, put the crystals in the magic cart and transferred them.

...... It's going to be a long shot.

　I smiled, regained my composure, and raised my gun.

　　　　　☆

　Emily and Elsa stayed behind at the sub-branch after Ryota left.
　As they looked on, crystals flew out of the transporter connected to Ryota's magic cart.
　One, two, three - at a terrific high pace, they flew out without pause.

''Wow, that was amazing!''
Mr. Ryota, you're in mass production over there, aren't you?
...... I get it, it's endless with slime and regular bullets.
'I see, you won't get more bullets, but you'll gain experience for an endless amount of time!
'Yes, sir!　It's just like Yoda to come up with that in an instant.

　For the next minute, the two women waiting at the sub-branch continued to marvel at Ryota's quick decisions and ideas.