Deep in jungle beyond human's border there is great biodiversity. Some of creature just like human, forms society with their own culture and intellect. Lion like humanoid creature so called lionman by human is one of the great biodiversity. Sometimes they are recruited by demon forces, and produce great warriors among them endangering human kingdoms in battlefield.

While they are called lionman but only male appearance looks like lion but female rather just look like human female. Yet both male and female of lionman surpass strength and recovery of human with beauty of body. They are also posses a great amount of mana though most of them rather like to be warriors and do not use spell.

One of lionman tribes has a great chieftain and warrior. With recent victory over other tribes and other creature tribes, there is no one can match him in vicinity.
Almost most creatures are scared of him with great strength and mana though his body is always desired. But sometimes, everything happens with coincidence.

He likes to walk and patrol near his village alone normally. But this time, he totally forgets to bring his arms. When he realizes it, he does not mind and continue his patrol as he thinks it would be another safe day that any hostile creatures or other tribe men would be avoiding him.

The chieftain let his guard down totally. Unfortunately he is not able to notice he is after by a creature. Surprisingly this inferior organism is one of predators on the jungle. It does not have great intelligence of fear or awareness, but a unsatisfied appetite in many ways including reproduction. Therefore it will relentlessly attack and pursue its prey once it finds suitable one. Sometimes the worm attacks in a large group, which makes even well trained lionman warrior struggle. Of course few worms will not cause any threat to the chieftain with his weapon. However the chieftain is off his guard without his weapon, and there is a worm having mouth-watering.

The chieftain does not know his healthy and mature body constantly emitting pheromone and mana dragging the worm.
For the worm, it is irresistible to take this higher organism's healthy body full of vitality and mana. It drools saliva and quietly get closer to the chieftain.