As mentioned before the calendar includes photos shot by the triplet's dad himself Song Il Kook and the profits are being donated to charity. Priced at 5,500 KRW (~5 USD), 168,000 copies were sold between the pre-order period of December 24th to the 30th. This means the total sales until December 31 reached 924,000,000 KRW (~850,000 USD) already, and it's expected to surpass 1 billion KRW soon.

The calendars will be shipped out on January 5th.