Today Japanese Twitter user @nattoume852144 shared an interesting life hack for high school students starting their semester in Japan today.

In high school, students are allowed to bring an e-dictionary to class and exams. These e-dictionaries, which usually cost hundreds of dollars, usually come in cases that look like this:

@nattoume852144 told high school students on Twitter that the case is big enough to hide a Nintendo 3DS XL and play it during class. He has never been caught and uses this tactic to raise Pokemon on his Nintendo 3DS:

A size comparison of an e-dictionary and Nintendo 3DS XL:

As of press time, the tweet has garnered over 36,000 likes as of press time, showing how ingenious it is. Hopefully no teacher would catch wind of this.

What do you think? Let us know in the comments.