The next special technique

With Sakaki's guidance and assistance, Rain focused his efforts on enhancing several key skills that they deemed crucial for achieving his objectives. He didn't give the details, but Sakaki could tell that Rain was about to make another breakthrough. 

Under Sakaki's tutelage, Rain made significant strides in mastering lightning-based techniques, refining his control over electrical energy and harnessing its destructive power with greater precision. Through rigorous training and practice, Rain cultivated a deeper understanding of the intricate dynamics of lightning manipulation, unlocking new techniques and strategies to employ in combat.

Similarly, Rain delved into the intricacies of Psychometry, expanding his proficiency in the realm of psychic abilities. Sakaki couldn't help but that much this time, but Rain refined his telepathic skills, enhancing his ability to communicate and perceive thoughts and emotions across vast distances.