This bug has been happening in the game for a month now, it happened during the entire Christmas period.
And... I used Google translate sorry...°.°
#bug image
crimson night
idle lichen
what is the problem? is it that the same image stayed for the entire Christmas period?
warm portal
it's a 
blackout trilogy 
idle lichen
yes but maybe the user had a bug where the story didn't change? I'm not sure
cerulean ice
there are 3 blackout natto comics