Like most QTs, all of the ML is the same person/has one soul

Mystical blue bird MC x Unicorn ML

(Cultivation)

ML saved MC from being contracted by the protagonist. The protagonist made the ogMC suffer after getting contracted, so MC tries to get revenge on protag by making her suffer.

ML is patient and caring towards the MC.

Panda MC x Zoo Director ML

(Modern)

ogMC is soo pitiful QAQ. He was supposed to be transferred to another zoo, but got kidnapped halfway, and then dismembered and eaten by some gangster😭

ML is super indulging and doting to the MC, and he knows MC is special panda.

The revenge is quite gruesome, so beware on that.

Horse MC x 10th Prince ML

(Ancient China)

ogMC was picked by the tenth prince and became the best of buds. Even after many people gave the 10th prince similar horses, he always pick the ogMC. However, when the fourth prince became the emperor he locked the 10th prince up. OgMC felt super sad about this news so he wishes that the 10th prince won't be imprisoned and come see him often.

Random fact: The 10th prince has 2 souls, one is the og 10th prince, and the other is ML, the eyes will change to gold when he takes over

(I'll be honest, I skipped 20 chapters of this arc because I got bored hehe)

Fox demon MC x Underworld Boss ML

(Modern)

ogMC accidentally fell into a different world, and ended up in a fox farm. Because he was injured, he reverted back to his fox form and has zero power/mana. While being in that farm, he sees many other foxes being skinned alive, their fur used for garments, and the rest for food or dog food. Due to having no power, he's just like a normal fox, so he was also killed.

However, because he's a fox demon, his soul is still alive and is placed inside a small "demon pill" inside his head. Most of the fox heads once it is killed wont be of use, so it'll be just thrown away, including ogMC's. Later on, as the head rots away, the pill is being exposed out more and more, until one day a passing gangster saw it and took it to the underworld boss.

ogMC then became the boss's collection. Though, the boss actually likes to talk to the pill from time to time. And ogMC realize that he's actually a kind guy. One day, the boss's rival infiltrated his house, so he ran/left the house but didn't bring ogMC. OgMC ended up being in the hands of the rival but got smashed later on by the rival's son. Before totally losing his consciousness, ogMC had 3 wishes.

Accompany the underworld boss in person, kill the rival and his son, and take revenge on the fox farm and put an end to the farm, so no fox will ever be used for garments or other things again.

Random quote: "The little Yu Qingyu, who looked like a lipstick, got out of his belly." XD I cracked up reading this. Lil Fox PP

Rabbit MC x Wolf ML

(Orc world)

ogMC didn't want to find a mate, so he ran away from home. He participated in a festival and found an orc being bullied by a group of orcs. OgMC wanted to save him but then froze from scared. After that the bullied orc disappeared. He regrets not saving him from being beaten, so he decided to keep searching for the bullied orc. To no avail, ogMC never found him until his death, which was killed by a stray orc.

ogMC's first wish was to find the bullied orc, stay with him and protect him. His second wish was to take revenge on the stray orc who killed him and kill him back.