ML came from immortal cutivation world. When ML ascended to immortal realm he met MC. MC is a weak chicken back then.

MC is a soul born outside of the worlds. He went on repairing worlds to worlds until he met ml. MC became find of ml, but died. He divided his soul. To save the dissipating soul of ML and reincarnate in many different worlds.

• • Grandma is an old woman who lived in a village her whole life and doesn't know much about the world. The MC basically told her that in other countries, men can become women and two men can get married. That was basically enough for her to accept her grandson becoming a "wife" and that conflict was resolved in a couple of lines.

• • The sister who saw him waiting for his partner at the university entrance exams was told her brother is with a man, and said "but he's a man, " and got an "I'm not blind, don't tell our parents yet, " and that conflict didn't even get explored. We don't know how she felt or what she thought other than her initial shock.

• • The father is a traditional patriarchal parent who got stereotypically angry. It was enough to tell him that the MC will stop giving him money to support the family and that his younger siblings can give him grandchildren for him to completely accept it, and that conflict was resolved in a couple of lines.

• • The mother had the stereotypical "it's my fault you grew up like this" reaction, and was told "I like men by nature, don't overthink it", so she stopped overthinking it immediately and that conflict was resolved in a couple of lines.

our MC here is a unique soul that can control the power of chaos which like is responsible for repairing and creating worlds then he goes to a cultivation world where he meets our ML and he talked to our ML and the ML became his first commutative partner they stayed with each other for a hundreds of years and when our ML planned to have a companion our MC suggested himself and also the MC is a bit of a narcissist. After that a bounty hunter attacked our couple when the MC’s body was at its weakest, and also the MCs body is a pheonix and he has a human form the MC killed the hunters that hurt our ML but eventually his body died he was planning on going back but another soul was born from chaos and always attacked he turn the soul into tiny pieces and was planning to go back but forgot about the passage of time not knowing hundreds of years have past our ML killed people because of grieve and used his soul to seal the world and our MC came just in time when his soul was almost dissipating and was planning in escaping with him but the parasitic chaos soul attacked and that explains the first chap. And there are still details but you should read yourself

The Original owner is actually the MC