Bug Exp Point Blank

Do you want get exp and lencana point blank without follow misi or quest. How to get bug exp and lencana point blank :
1. open your quest or mission has complete
2. click quest/mission has complete
3. after you click, you try see time at room, no any mission but you has choice quest
4. you play until finish
5. after you play, you will get exp + lencana without follow mission

thx n3