Lives on Kaisekukun

The Ultimate Guide to Business Credit Cards for Freelancers in 2026

Thu, 05 Feb 2026 18:37:00 +0000

“Are you paying for server fees, domain costs, and phone bills with your personal credit card?”
“You want a business card, but the annual fee worries you?”

If you are just starting out as a freelancer or running a side business, you might be struggling with money management.

Just as you should keep a separate business bank account, separating your credit cards into personal and business use is critically important.

Slow Charging? How PD and GaN Can Cut Your Charge Time in Half

Wed, 17 Dec 2025 03:00:00 +0000

“Is your phone charging slower than usual?”
“Is your laptop charger too heavy to carry around?”

Do you feel a little stress every time you charge your phone or computer?

In recent years, the world of chargers has undergone a revolution.
If you are still using the old charger that came with your phone or a cheap cable from a dollar store, you might be wasting precious time.

With the latest technology, what used to take 2 hours can now be done in 30 minutes, and brick-heavy laptop adapters can be reduced to the size of an egg.

Wi-Fi Too Slow or Not Connecting? Simple Fixes You Can Try Right Now

Fri, 07 Nov 2025 06:00:00 +0000

Videos buffering endlessly. Your voice cutting out during web meetings. Nothing is more frustrating than a slow or unreliable Wi-Fi connection.

“I don’t know anything about networking settings, and calling support sounds like a hassle…” “It was working fine yesterday — why is it suddenly slow?”

Many people struggle with these exact problems. But the good news is that Wi-Fi issues can often be resolved with some simple checks, no technical expertise required. In this guide, we will walk through the common causes of slow or unstable Wi-Fi and the specific steps you can take to fix them.

iPhone 17 Announced: Release Date, Pricing, and New Features Explained

Tue, 09 Sep 2025 15:00:00 +0000

Hello!

Apple has announced the new iPhone 17 series. Here is a comprehensive summary of the confirmed specs, pricing, and features. Let us take a look at what has changed from the iPhone 16 and the key highlights for practical use.

Announcement, Release Date, and Pricing

Announcement: September 9, 2025, at Apple’s online event
Pre-orders: Starting September 12
Release: Rolling out from September 19
Japan pricing (base model): From ¥129,800

Model Lineup, Sizes, and Storage

The iPhone 17 series includes multiple models, each with distinct characteristics:

My Number Card on iPhone Launches Today (June 24, 2025): What You Need to Know

Tue, 24 Jun 2025 01:46:14 +0000

Hello!

Today, the Digital Agency of Japan officially launched the “My Number Card on iPhone” service, effective June 24, 2025. With Apple Wallet support, government services can now be accessed with just an iPhone.

Service Launch Date

From June 24, 2025, My Number Card can be registered in iPhone’s Apple Wallet.

Key Features and How to Use

1. Registration Process

Update the “Myna Portal” app to the latest version, then:

My Number Card Now Supported on iPhone: Register in Apple Wallet from June 24

Fri, 06 Jun 2025 02:22:01 +0000

Hello!

Today, the Digital Agency of Japan officially announced that “My Number Card on iPhone” service will launch on June 24, 2025. This allows users to register their My Number Card in Apple Wallet, making government services more accessible and convenient.

My Number Card Now Available on iPhone

With this feature, iPhone users can access government services — such as logging into Myna Portal and obtaining certificates at convenience stores — without carrying a physical My Number Card. Facial recognition (Face ID) and fingerprint authentication (Touch ID) ensure secure and easy identity verification.

Is Yu-Pack Facing an Existential Crisis? The Impact of Japan Post's Permit Revocation

Thu, 05 Jun 2025 01:10:00 +0000

Hello!

Yu-Pack — Japan Post’s flagship parcel service, loved by many for its nationwide delivery network and accessibility at post offices — is now facing an unprecedented existential crisis.

The trigger was the June 5, 2025 announcement that Japan Post’s freight transport permit would be revoked. MLIT determined that numerous post offices nationwide had violated the law by failing to conduct proper driver safety check-ins and safety confirmation procedures.

Japan Post Faces Unprecedented Transport Permit Revocation Over Safety Failures

Thu, 05 Jun 2025 00:30:00 +0000

Hello!

On June 5, 2025, the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) decided to revoke Japan Post’s general freight motor carrier permit. The decision stems from widespread failures to properly conduct driver safety check-ins at post offices nationwide. This action will ground approximately 2,500 trucks and vans, severely impacting Japan Post’s logistics operations.

The Reality of the Safety Violations

MLIT audits found that over 60% of the 119 inspected post offices had inadequate driver check-in procedures, violating the Motor Truck Transportation Business Law. Violations included failure to verify alcohol detector use and check-in frequencies falling well below legal requirements.

iPhone SE 4 Rumored to Launch Next Week: Latest Leaks and Expected Features

Sat, 08 Feb 2025 07:00:00 +0000

Hello!

Rumors are intensifying that Apple will announce the iPhone SE 4 next week. This model has been highly anticipated by Apple fans and smartphone users alike. Here is everything we know so far about the expected features, leaks, and market impact.

1. Background of the iPhone SE 4

Apple has traditionally offered cost-effective models through the iPhone SE series, gaining strong support in the mid-range market. The rumored iPhone SE 4 is expected to carry on this tradition while incorporating the latest technology as a next-generation entry model.

The Complete Guide to Choosing and Using a Wi-Fi Router

Fri, 03 Jan 2025 22:00:00 +0000

Hello! Today, we are diving deep into the Wi-Fi router — an essential device for modern life. With smartphones, computers, game consoles, and even home appliances connecting to the internet, a good Wi-Fi environment is crucial. This guide covers how to choose the right router and get the most out of it.

1. Understanding Wi-Fi Router Basics

What Does a Wi-Fi Router Do?

A Wi-Fi router wirelessly delivers internet to devices throughout your home or office. Think of your internet connection as a highway; the router acts as the intersections and off-ramps that distribute traffic throughout your house. Choosing the right router reduces congestion and enables smooth communication.

Free Square Register Giveaway & Tap-to-Pay on iPhone: Get Started Today

Mon, 23 Sep 2024 10:30:00 +0000

This article contains affiliate links.

Hello!

Today, we are introducing two attractive Square campaigns. But first, let us talk about why Square is a great choice for businesses. Square offers a simple yet powerful payment system trusted by many merchants. With low initial investment and excellent cost-performance, it is an ideal tool especially for small businesses and new startups.

ChatGPT-o1: OpenAI's Latest AI Model Explained

Tue, 17 Sep 2024 04:00:00 +0000

Hello!

Today, we are introducing ChatGPT-o1, the latest language model from OpenAI that has been gaining significant attention. ChatGPT-o1 represents a major leap forward in AI technology, with substantially improved performance over previous versions. In this article, we will explore the features, applications, and future potential of ChatGPT-o1 in detail.

What is ChatGPT-o1?

ChatGPT-o1 is the latest version of OpenAI’s natural language processing model, designed to deliver even more advanced text generation and conversational responses. It is built to make communication with AI more natural and responsive, bringing AI assistance closer to everyday life and business scenarios.

Apple Wallet Adds ID Support in Japan: A More Convenient Digital Life

Fri, 31 May 2024 01:00:00 +0000

Hello!

Today, we are discussing a significant announcement: Apple is bringing ID support to Apple Wallet in Japan. As technology continues to make our daily lives more convenient, this new feature is expected to have a particularly large impact.

Apple Wallet Adds ID Support

Apple has announced the ability to add identification documents to Apple Wallet on iPhone. This feature allows users to store official IDs — such as driver’s licenses and My Number cards — digitally and present them when needed.

iPhone Can Be Used as a Contactless Payment Terminal! A Simple Guide

Thu, 16 May 2024 21:00:00 +0000

Hello!

Today, I want to talk about the exciting news that iPhone can now be used as a contactless payment terminal in Japan. As smartphones have become an indispensable part of our daily lives, Apple’s latest feature promises to make everyday transactions even more convenient.

iPhone Now Available as a Contactless Payment Terminal

With Apple’s latest update, iPhone can be used as a contactless payment terminal in Japan. This means retail stores, restaurants, and various other locations can easily accept cashless payments.

I Fell for the Recent Task Scam — Here Is What Happened

Sun, 12 May 2024 14:00:00 +0000

Sharing my experience of falling for a task scam, in the hope that it helps others avoid the same fate. What seemed like a simple, safe task ended up causing significant financial damage. Here is the full story in detail.

The Scam Method

The scam I encountered was deceptively simple: send screenshots of YouTube videos for payment. The scammers explained that completing this task would earn a reward. It required no special skills or significant time, so I participated without suspicion. But this was just the beginning of the trap.