Grand Summoners x Overlord Collaboration

Grand Summoners x Overlord Collaboration is a special collaboration crossover event hosted in Grand Summoners which began in December 19, 2022 until January 17, 2023.
== Story ==
Ainz, Albedo, Shalltear Bloodfallen, and Narberal Gamma have become dot characters in this collaboration event. All the collaboration units can be super awakened and greatly powered up. Enjoy the best of this event along with the original story quests.
== Trivia ==
* To commemorate the collaboration with Overlord, a Campaign to Get Collaboration Summon Tickets will be held, where players can get up to 100 or more Collaboration Summon Tickets for the first and second part of the event.
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