Mokou with white flames is rare. I wonder if zounose had came up with a new doujin with Mokou taking main role.
I still didn't see any doujin which exploits hourai-jin's mind aspect. If human's emotion is frequency, the sense of time is velocity then her mind's wave length is extraordinary long to the point it could be considered as a flat line. The longer she lives, the dimmer her memories becomes so the emotion. Finally, she reaches the state of thoughtless. The white flame may not a flame but smoke comes from her humanity being burned out year by year. She keeps it inside and let out red burning bright flames in order to fluctuate her emotion and sense vigorously.
A question being left there is that if the immortal could achieve enlightenment? The sinners who are convicted, exiled to avici hell, are prisoned for a really long time not eternity so one day they may reach enlightenment right?
Left the silly writing above aside. Mokou's sense of time can still be conserved as normal human, the scenario above only happens if Mokou can sefl-sufficient or is a perpetual engine so she doesn't need to eat. But if she need to eat not because she need nutrient but feeling of hunger is terrible which will be her internal clock.