User blog:Starchythepotato/Weekly Japanese News - 23/2

Maintenance

 * Occurs on 22/2 08:00 ~ 14:00 PST
 * Adding Lugina Grand Quest
 * Adding more items to mission shop (Achievement system)
 * Adding new unit batch (More below)
 * Various bug fixes

Evolution Vortex Madness

 * Happening until 2/3 06:59 PST
 * Enchanted Paradise, Cave of Greed, Oasis of the Gods and Machine God Vortexes are opened.

Super Rare Summon

 * Occurs on 22/2 14:00 ~ 4/3 21:59 PST
 * Guaranteed 4* and above.
 * Free unit every 5 Rare Summons.

Other Notes

 * Daily Login Gem happens until 28/2 21:59 PST

That's all for now! Hope ya'll have a great week! All info taken and condensed from Reddit and App Invasion