The protagonist was infected by evil and out of control. After his death, his lover and relatives searched for his soul. After rebirth, he turned himself into a man and a woman, his brother into a man and his sister into a woman.
So, you are together? Don't even tell me? Am I dead? Good guy! One by one, old cows eat young grass! #%***Of! Give it back to my brother! Give it back to my sister! Give it back to my bestie! Give me back my friend!
Concept: Love is gender-neutral