DNF’s approach to the For the Orbital Center mission:

1. For the "For the Orbital Center" mission, you need to clear the ordinary dungeon in the Orbital Center to obtain 5 different space-time stones.

2. So you need to go to the underground center of the demon world first.

3. Then go to the Time Square dungeon in the ordinary dungeon in the center of the orbit, and clear the dungeon to obtain the mission item "Norni's Time and Space Stone of Transcendence".

4. Then clear the Orc Canyon dungeon and obtain the mission item "Gragul's Time and Space Stone".

5. Continue to clear the terrifying habitat copy and obtain the mission item "Domina Hayley's Time and Space Stone".

6. Then clear the Wind Zone copy and obtain the mission item "Sulfana's Time and Space Stone".

7. Finally clear the copy of the Red Witch's Forest and obtain the mission item "Blue Witch's Time and Space Stone". At this time, the five mission items of space-time stones were successfully obtained, and the mission "For the Orbital Center" was completed.