BIGLOBE the biggest internet service company in Japan announced a special promotion SIM card which will be available only during the Comiket 90 Summer in Japan between August 12 and 13, 2016.

If you visit the BIGLOBE stage you can buy this special Planetarian SIM card which comes with the design of the current Animation. The card going to costs 4500 Yen (with tax).
The card is a Ninja SIM card (prepaid) which comes with 3GB data for 30 days but for an additional 2000 Yen (+ tax) you can buy an additional 1GB package.