[LINE Summary] Is it an exaggeration to say "When you think of railroad crossing stickers, you think of Natsu"?

Last updated: 2026/7/12 Eye-catching image changed

Hello.
I'm Natsu, a nurse and mother of two.
I use AI to create things that make life easier and a little more exciting.

In this note, I write freely about the things I've made, my trials and errors in daily life, and the things I love.

This time, it's an introductory article about LINE stickers.

In March 2026, I decided to start a side hustle,
and it was a month where I made quite a lot of LINE stickers.

Among them, the railroad crossing series was particularly numerous.

The trigger was that Akkun really loved railroad crossings.
Watching him look at them almost every day, getting happy, and being absorbed in them, I started to think,
"I wish I could turn this feeling of love into something."
I started to think that.

From there, I started creating railroad crossing characters little by little.

At first, they were simple daily stickers,
but before I knew it, a polite version was made, expressions increased, content suitable for families increased,
they became 3D, they became robots,
and in the end, characters born from actual railroad crossings even appeared.

Even I think it has expanded quite a bit.

Today, I will summarize and introduce that March railroad crossing series.

First, it started with "Fumi-chan"

The first one I made was
"Railroad Crossing Fumi-chan Daily Stickers".

While choosing phrases that seem easy to use in daily life,
I made it because I first wanted to try making a railroad crossing into a friendly character.

Railroad crossings are supposed to be inorganic by nature,
but it's strange how you suddenly feel attached to them when you add faces and movements.

The stickers are here.

"Polite stickers" that can be used carefully

The next one I made was
"Railroad Crossing Fumi-chan Polite Stickers".

When people liked Fumi-chan,
I thought it would be nice if they could be used in more situations, so I made a polite version.

Casual daily stickers are good, but
I feel that if there are things that can be sent with polite words, the situations in which they can be used will expand significantly.

Click here for the stickers.

The more expressive "Daily Stickers 2"

Next is
Railroad Crossing Fumi-chan's Daily Stickers 2.

From this point on, Fumi-chan's expressions started to become more varied than before.

While trying to avoid overlapping with the first set as much as possible,
I also wanted to make them easy to use in daily life,
so I gradually expanded the vocabulary and atmosphere.

Even with the same character, as I kept making them,
it was interesting to get a sense of things like
"Oh, this character would make this kind of face too."

Click here for the stickers.

The family-friendly "Daily Stickers 3"

Next is
Railroad Crossing Fumi-chan's Daily Stickers 3.

This set contains many items designed to be easy to use even within a family.

I made them hoping they could be used not just between friends,
but also for quick messages at home or for gentle interactions.

I feel that for things used every day,
a slightly gentler tone fits better than strong words.

Click here for the stickers.

The squishy and cute "3D Fumi-chan"

And then, I changed the atmosphere a bit to create
Squishy and Cute! 3D Railroad Crossing Fumi-chan Stickers.

When I turned the flat Fumi-chan into 3D,
she turned out even squishier and more animated than I expected, and became very cute.

It was a project that made me realize that even with the same character,
just changing how they are presented can change the impression so much.

Since there are various movements, I think it turned out to be quite fun to look at.

Click here for the stickers.

The "Railroad Crossing Robot" that leans in a cool direction

I changed tracks a bit here and created
the "Railroad Crossing Robot Daily Stickers".
These stickers feature a railroad crossing robot that supports daily conversations, making them easy to use for both work and personal life.

If a railroad crossing were a robot, it might be kind of cool.
That was the idea behind creating them.

If Fumi-chan has a soft vibe,
the railroad crossing robot is a bit more mechanical and has a bit of a quirky feel.

Even with the same railroad crossing motif,
it was a series that made me realize you can expand in different directions, not just by being cute.

You can find the stickers here.

"Foomy," born from an actual railroad crossing

The last one is
"Railroad Crossing Foomy's Daily Use Stickers".

This was born from telling the AI to turn an actual photo of a railroad crossing into a character.

It has long limbs, is a bit unique, but still cute.
It ended up with a different atmosphere from both Fumi-chan and the railroad crossing robot.

I think it's because I was observing the railroad crossing itself
that this different kind of character emerged.

Even though they all started from the same "love for railroad crossings,"
the interesting part is how the characters turn out slightly differently.

You can find the stickers here.

From a love of railroad crossings, they've grown this much

When I line them up like this,
the March railroad crossing series alone has grown quite a bit. There are 7 types in total.

Having made this many, I think it might not be an exaggeration to say "Natsu is the go-to for railroad crossing stickers" lol

At first, I just started making them with the feeling that
it would be nice if Akkun was happy.

But once I made one,
"Maybe it would be good to have polite language"
"Maybe it would be good to have more expressions"
"3D seems interesting too"
"What if I made it a robot?"
and it gradually expanded.

I think when you have something you love, it naturally branches out from there.

A railroad crossing might look like just a motif,
but in our home, it's quite familiar and is truly a part of our daily life.

That might be why I was able to make so many different types.
If I've made this many, maybe I'll become known as "Natsu, the railroad crossing sticker person!" lol

I am still making other stamps in March, so
I will summarize those in another article.

This time, I introduced the March railroad crossing series born from my love for railroad crossings.
If there is anything that catches your eye, I would be happy if you took a look.

Once again, I am Natsu.
The theme of this note is"Turning all of life into notes."

Childcare, housework, home building, household budget management, and AI side hustles.
This is a place to record what happens in daily life, organize "what is difficult," and create systems to make things run a little more easily.
And, not just for posting, I will record and analyze it as


a multi-genre posting experiment log of turning my whole life into content.▼ If you are curious about "What kind of person is Natsu?", please check out my self-introduction.

▼ Guide to this note. If you are new here, please start from here.

▶︎ Everything I have created with AI is placed here.

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Official LINE for activities

I plan to release not only finished products but also works in progress and prototypes on my official LINE.
It is a place to reduce the "I thought I'd look for it later but couldn't find it" moments, and also a place where you can see all of Natsu's activities in one place.
If you are interested, please feel free to register.

Thank you for reading until the end.
If you like, please give me a "like," comment, or follow.