Kraftvoll charged to his enemy with all his might while he was chanting a seishin spell to use against his enemy.
He chanted, "Ye who exemplifies the aspect of groundedness, allow my desire to be fulfilled, pull thy master's enemy down to your center, Gravitational Field!"
An immense amount of seishin essences started to gather around Kraftvoll when he was chanting while running. Before his chant came to its conclusion, all of the seishin essences that he was able to gather were went to the ground beneath his current opponent.
After finishing conjuring his Gravitational Field seishin spell, a great gravitational force managed to halt the movement of his enemy who just entered the cave. The dwarven young lady was able to withstand the two times gravity caused by Kraftvoll's seishin spell.
This made Kraftvoll think, 'Senior sister is truly formidable. It seemed like I need to use my full power against her!'
After thinking that, Kraftvoll doubled the seishin essences that he was using to maintain the Gravitation Field seishin spell that he conjured toward his enemy. This made his enemy fell on her knees because of Kraftvoll's seishin spell.
Despite his enemy's situation, Kraftvoll was still not sure if this was enough to defeat his enemy because of what he learned from experience. 'What a strong body senior sister has! What do I do!? This is already the maximum output that I can do!'
With this doubt in his mind, this made Kraftvoll do something that was beyond his ability. He decided to double the effect of his Gravitational Field seishin spell that was holding his enemy down.
Although Kraftvoll's Gravitational Field seishin spell only managed to double its effect from his utmost limit, the inner seishin essences consumption actually tripled. 'I must finish this battle at once! Or else I would be eliminated!'
This time, Kraftvoll was using a seishin output beyond his rank which means that his body was not able to cope up with this. He wanted to finish the battle as soon as he can or else he would definitely lose.
When the gravitational force that was holding the dwarven young lady doubled after Kraftvoll used his risky move, the power of eight times the normal gravity made his enemy fell even harder than before. Now her whole body was stuck into the ground because her body couldn't bear the strength of the immense gravitational force she was put in by Kraftvoll using his seishin spell.
'What is this!? I can't move even in the slightest movement. How can I counter that first-year brat!' she thought while under the immense burden by Kraftvoll's seishin spell.
While invoking this seishin spell beyond his limit, Kraftvoll was consuming his inner seishin essences reservoir at an astonishing rate. If the enemy didn't surrender for the next 5 minutes, Kraftvoll will run out of inner seishin essences which will force him to surrender against her.
One minute had passed by. Kraftvoll's enemy that was under the immense pressure of his Gravitational Field seishin spell was at her limit. This immense pressure falling unto her started to become unbearable to her mental fortitude The situation managed to make her attempt a desperate measure.
She shouted with all her might, "Earth Tremor!" The ground of the cave where Kraftvoll and the dwarven young lady were fighting started to shake.
'Crap! At this rate, the ceiling of the cave will collapse! I must prevent that at any cost!' Kraftvoll thought after the sudden start of the quakes inside the cave after his enemy had insta-cast a seishin spell.
An idea came to Kraftvoll's mind. He stopped holding his Gravitational Field seishin spell. Shortly after that, he immediately insta-cast a seishin spell to prevent the ceiling of the cave to collapse again like it did the last time.
Kraftvoll shouted, "Serpent Wave!" A wave in the form of a serpent was immediately launched toward the ceiling. Kraftvoll had no choice but to use the reservoir of inner seishin essences to insta-cast this seishin spell. Based on his previous experience battling inside this cave, the ceiling of the cave was rather fragile.
When the Serpent Wave seishin spell hit the ceiling, it immediately froze. This gave the ceiling of the cave support so that it will not bury Kraftvoll after all of the rubbles caved in.
When the immense burden of the Gravitational Force was lifted from her, the dwarven young lady was freed from its overwhelming pressure. The moment she was able to move again, she tried to get away from the cave with all her might. Unfortunately. her body was extremely exhausted from the immense burden she was put under earlier.
She was only able to walk that was slightly faster while she was trying to run. When Kraftvoll finished his insta-casting, he immediately noticed his enemy's escape which was why he immediately ran toward her.
Kraftvoll pursued his escaping enemy. With the enhancement of his Wind Guard seishin spell, he was easily able to catch up to her. He immediately started chant the moment he got near to his enemy.
He chanted, "As the element who represents fear itself, restrict those who oppose me, Shadow Bind!"
Black seishin essences started to gather around him when he started chanting. Amidst his chant, those black seishin essences turned into particles of shadow. In the end, a shadow suddenly formed when all of those particles of shadow bonded together.
The shadow that Kraftvoll managed to conjure immediately went toward his enemy the moment he finished saying his chant. The enemy was very slow in comparison to the speed of Kraftvoll's Shadow Bind seishin spell so it easily reached her after a short period of time.
If the enemy was not physically exhausted from the previous seishin spell that Kraftvoll had invoked, she might've managed to escape Kraftvoll's grasp.
The moment the shadow reached Kraftvoll's enemy, the dwarven young lady was immediately stopped at her escape from Kraftvoll. Due to the effect of Kraftvoll's Shadow Bind seishin spell, she was unable to move because of Kraftvoll's seishin spell.