Through a Thousand Years of Darkness

I walked through thousands of years of darkness to come to you, just to meet you in the darkness of that day... A chance encounter in my childhood led me to meet Kai from the bat tribe. He told me his special identity straight to the point, but was "scared" by my lack of reaction, and we have known each other ever since. There always seemed to be a layer of melancholy in his eyes, but I still liked him regardless. Everything about him made me feel at ease and satisfied. Later, I met two more of his "kinds" who had an unusual relationship with him, but it was unclear whether they were friends or foes. A series of confusing experiences made me doubt the mysterious "bat tribe" in front of me. What is the truth? Kai... Will he really be my happiness? Conception: