DNF Chrono Battle Group Book Tickets can be obtained by purchasing the special energy hiding device gift box from NPC Kamen Rider and opening it.

Purchasing tickets requires 100 Birth Buds and 20W gold coins.

Buds of Birth come from all dungeons in the Demon Realm.

It costs about 2,000-3,000 yuan each, which is about 40,000 yuan per ticket.

After the version is launched, you will get the side story mission - The Invasion of the Space Demon and the Battle of Time and Space. You must first join the guild and obtain 30 [Guild Contribution Certificates] and then talk to Celia to obtain three dark energy.

Then talk to the NPC Kamen Rider in the group version and get a dark matter.