Kosu's mind was buzzing with all the new information he had learned about his heritage and his unique power, Soul Charge. He lay down on his bed and closed his eyes, feeling completely drained. 

As he drifted off into a deep sleep, memories of his childhood flooded his mind. He remembered his parents, his father's strong and caring presence, and his mother's warm smile.

Kosu's dream took him back to a memory from his childhood. He was in the living room of his family's small cottage, playing with his toys on the floor. His parents were sitting on the couch, watching him with warm smiles. They were all gathered around a large table, enjoying a delicious meal and chatting happily. Kosu could feel the warmth and love emanating from them, and he felt a sense of comfort and nostalgia wash over him.

"Do you remember the dream you had last night, Kosu?" his mother asked.

Young Kosu looked up at her, his eyes wide with curiosity. "What dream?"

"You told us you dreamt of flying, remember?" his father chimed in.

Young Kosu's face lit up with excitement. "Yes, I remember now! I flew all the way to the clouds!"

His mother laughed softly. "You have such an active imagination, my dear."

Kosu's father leaned forward. "But there may be more to it than just a dream. In our family, some have been known to possess unique powers, including the ability to fly."

Young Kosu's eyes widened in amazement. "Really? Do I have that power too?"

His father smiled gently. "Perhaps, my son. Only time will tell."

Kosu felt a surge of excitement and wonder at the possibility of having a special power like his ancestors. But then, his dream took a strange turn, and he felt like his father was speaking directly to him.

"Kosu, my son," his father's voice echoed in his mind. "I know this is all overwhelming for you, but you have a great power within you. You must learn to control it and use it for good."

"Father...is that you?" Kosu asked tentatively.

"Yes, my son," his father replied, his voice strong and clear. "I have been watching you, and I am proud of the young man you have become."

Tears welled up in Kosu's eyes as he heard his father's words. He had always longed to hear them, even though he knew it was impossible.

"I...I don't understand," Kosu stammered. "How can you be here? You're dead."

"I am here because you need my guidance," his father explained. "You have inherited the family's power, and it is time for you to learn how to use it properly. You have a great destiny ahead of you, my son."

Kosu felt a sense of comfort wash over him as he listened to his father's words. It was as if he was being reassured that everything would be okay.

"Father, I don't know what to do," Kosu admitted, feeling vulnerable.

"You must learn to control your heritage power," his father said firmly. "It is a powerful tool, but it can also be dangerous if not handled with care. Listen to your Guild Master, Tetsuo, and practice every day. I know you can do this."

Kosu nodded, taking in his father's words. He felt more determined than ever to master his power and make his father proud.

"Thank you, father," he said, a sense of peace filling his heart.

"You are always in my heart, my son," his father replied, before fading away.

Kosu felt a jolt of energy surge through his body, and he opened his eyes to find himself in a different place. He looked around and realized that he was standing in a dark and desolate wasteland, with no sign of his father or mother.

Confused and disoriented, he began to walk forward, hoping to find some answers. And that's when he saw Jinpei, standing in the distance, beckoning him to come closer. 

Kosu looked up to see Jinpei standing before him. His friend looked weary, as if he had been through a lot. Kosu wanted to ask him what was wrong, but before he could, Jinpei spoke.

"Kosu, I have to go. I need to face something alone, but I don't know if I'll come back." Jinpei's voice was solemn.

Kosu was stunned. "What do you mean? What's going on?"

"I can't explain it right now, but please, promise me that you'll come after me if I don't return. It's dangerous, but I have to go."

Kosu didn't know what to say. He had never seen Jinpei so serious and troubled. But he knew he had to do something. "I promise. I'll come after you, no matter what."

Feeling both confused and unsettled, Kosu sat up in bed, taking a moment to collect his thoughts. He realized that his dream had reminded him of what was truly important - his family and his friends. He also knew that he had to work harder than ever to master his strength and be able to save Jinpei from whatever dark and dangerous place awaited him.

With this determination in mind, Kosu got up and went to find Tetsuo to continue his training.