Hi-Sensei

【No More Failures】Complete Manual for SIM Card Application

"My SIM application was not approved..." 90% of the causes are actually mistakes in writing "Name" and "Address." How to write middle names? Should numbers be half-width? I (Sensei) will teach you the "Correct Input Manual" so that foreigners will never fail the screening. Check this before you apply!

2026.01.25

SIM & Wi-Fi-en

【2026 Latest】Recommended for Trainees! 3 Cheap SIM Cards You Can Get Without a Credit Card

Are you paying more than 5,000 yen for your monthly phone bill? That’s too much! I’ll introduce 3 recommended cheap SIMs (Rakuten Mobile, LINEMO, ahamo) for trainees that can be contracted with Bank Transfer (Ginko Furikomi / 銀行振込) without a credit card. Stop using expensive "Foreigner SIMs" and save 2,000 yen every month.

2026.01.25

SIM & Wi-Fi-en

【Must-Read】 No Shopee in Japan! How to Safely Buy on Amazon Using “Cash” at Convenience Stores

"No Shopee in Japan?" "Can't shop without a credit card?" I'm here to solve those problems! You can actually pay for Amazon orders in cash at convenience stores. Master safe Amazon shopping to avoid Facebook scams!

2026.01.25

Life in Japan

【JLPT N3・N2】 Not in Bookstores!? Buy the “Best Textbooks” on Amazon to Pass!

A must-read for trainees who say, "I want to pass the JLPT and become a Specified Skilled Worker! I want to increase my salary!" I will introduce the best textbooks like "Shin-Kanzen Master" and "So-Matome" that successful candidates all use, which are hard to find in local bookstores. I'll also teach you how to buy on Amazon using convenience store payments even if you don't have a credit card.

2026.01.25

Study

【Disaster Prep & Saving Money】 Don’t buy at convenience stores! The best portable power banks.

Are you panicking because your phone is dying and buying an expensive charger at a convenience store? That’s a waste of money! Online, you can buy a powerful battery that can charge your iPhone 4+ times for the same price. I’ll show you the essential items for trainees that are also useful during disasters like earthquakes.

2026.01.25

Shopping & Gadgets

Save on Electricity! Japan’s Winter is Cold! “Electric Blankets” are the Best Way to Sleep Warm Without Using the AC

Are you leaving your AC on all night during the Japanese winter? Your electricity bill might exceed 10,000 yen! But don't worry. By using an Electric Blanket (Denki Mofu / 電気毛布), you can stay warm until morning for only 240 yen a month. A must-have for trainees looking to save money!

2026.01.25

Shopping & Gadgets