1. Spam kishin until your mana drains down to 0. (wait till it refills back to 100 to spam even more)
2. Do it 7 times and map will be glitched permanently. You may do it additional times to glitch it even more. Enjoy
This will makes the map spawn more mobs than usual even WITHOUT kanna in the map. So, once kanna glitched the map, kanna can leave, the map remains somewhat auto kishin.
If mobs respawn slower then its not glitched. If mobs spawn right away you kill them that's how you know it's glitched.
Until the next server maintenance, it will reset the glitch, then you need to do again.