[NGS ver.2 May 15th distribution] Collaboration items with "Liza's Atelier" &"Marie's Atelier Remake" are now available. What is the alternate route for the limited-time quest "Hypothetical Exercise: Defeat the Enemy of the Flow Attack"?

[NGS ver.2 May 15th distribution] Collaboration items with "Liza's Atelier" &"Marie's Atelier Remake" are now available. What is the alternate route for the limited-time quest "Hypothetical Exercise: Defeat the Enemy of the Flow Attack"?
The limited-time quests that will be released in the May 15 update of "PSO2 New Genesis" and the collaboration with the "Atelier" series will be revealed....

The linked article is in Japanese.