4 Stages of shipping Kurakuwayuuhi/Team Polymeshi/Yu Yu Polycule and why it's Kuwabara's fault:
Stage 1: I read some omegaverse Yusuke/Kuwabara fics where they're hot. Or rated t or gen fics where no one was shipped with Kuwabara but he dies and there's team angst. I played around with more angst concepts of Yusuke loving Kuwabara and outliving him.
Stage 2: I was talking to a twitter mutual who ships Kurama/Kuwabara. He made me realize they have a teacher-student dynamic. HE TRAINED THAT BOY HARD. The angst of Kurama being so very afraid of losing one of his teammates after Kuwabara was kidnapped is very dear to me. I read some fics about them. I saw some pixiv art because I looked for it to share with my mutual.
Stage 3: I entertained the angst of Hiei/Kuwabara where Kuwabara dies and Hiei misses him unexpectedly. I saw some more art, saw some gay fighting with sex. Read some fics, some angst some comedy. I like the kind of size difference where the smaller guy is stronger and manhandles the bigger guy into sex. Angst gets better if you add Kuwabara/Yukina and twins drama.
Stage 4: I joked about Kuwabara ironically attracting all the demons around him depsite his name being a chant that should drive away spirits. Insert art of lamb getting bitten by wolves here because it's funny, it's sexy, it's life. I started reading ot4 fics with angst or with smut. I started writing my own ot4 fics (one of them 42k words because I got carried away, okay?).
Now, writing a new polyam fic with plot, sex and angst.
PS: before shipping Kuwabara with these characters, I was only into Kurayuuhi because Yusuke is my favorite glue. Turns out Kuwabara is the even stickier glue.