Sword Energy

The night quickly came, drowning Crimson Sea Academy in its luminescent glow. 

At this time, Cain was already back at his house. After another successful date with Amber, he parted ways with her only after giving her an electrifying kiss.

In all honesty, kissing Amber wasn't just for pleasure and sharing of emotions. Cain legitimately felt his Martial Hert quiver in warmth, unleashing soothing soul waves throughout his Mental Psyche.

The most he could gather about this phenomenon is that feelings between cultivators run far deeper than mortals. 

He and Amber will eventually culminate to a point where their very souls have a spiritual dependence on each other. By the time they join as one, perhaps not only will their cultivation grow but also their Martial Hearts experience some sort of breakthrough.

As of now, their feelings only allowed Cain to fall into a calm Mental Psyche state for cultivation.