[9/3 17:40 Update]
In regards to the malfunction of showing purchase button for "3-day-limited free gacha"
and able to use the gacha although it is out of session, compensations with following details.

Receiving period (JST)
Start: 2018/9/4（Tue）0:00
End: 2018/9/10（Mon）23:59

Details for compensation
・Gems: 300

We are striving to enhance our service of Alchemia Story for you to enjoy.
Thank you for your understanding and cooperation.

This is Alchemia Story Operation Team.

We have confirmed a malfunction where "Lunar Harvest Gacha's" 3-day-limited free gacha, which has been starting since 8/31, is still showing button to purchase and able to purchase the gacha although the sale period is over.

Details of malfunction
・While 3-day-limited free gacha is in session and using it from 15:00 to 23:59 (JST), gacha that should be available from 15:00 on the next day, shows "Sold Out" at 0:00.
・With above condition, can not purchase the gacha until 15:00, although you will press the button to purchase.

When this issue occur, you can normally purchase the gacha at 15:00 on the day.

We are currently fixing this issue. We appreciate for your patience.
Also, we are planning compensation for this malfunction, which will be notified later.

We are striving to enhance our service of Alchemia Story for you to enjoy.
Thank you for your understanding and cooperation.