Absorbing The Fire Tulip
As soon as Klaus returned from Stone Valley, he went into seclusion to tackle something he had been putting off for too long. When he killed the Fire Horn Leopard in the Fire Region of the Demon's Abode, he obtained a rare flower called the Fire Tulip.
According to the senior, absorbing it would enhance his control over fire and grant him a certain degree of fire resistance. Klaus had either postponed it or, more truthfully, forgotten about it. The were many things he was dealing with.
However, on his way back from Stone Valley, he remembered. So after spending a few hours with his mom and Miriam, he entered seclusion to finally consume it.
Now, sitting in lotus posture inside his training room, Klaus retrieved the Fire Tulip, and immediately, the temperature spiked.
"It's hot," Klaus muttered.