Go to NPC Giru from photo above.

To start all task say: start
To check progress of all tasks say: report
To get reward for done task say: report {monster race} Example: report R103 scout units

Tasks are mission rely on killing monsters. As a reward, we get money and experience. Task can be done only once time and as a reward for done all tasks we receive additional +1500 max. HP/KI. and achievement