MTL - Marvel Plane Trader - Chapter 4 need help

Xv Yang, an illegitimate son of the royal family, was betrayed by his beloved, had his bones excavated by his elder brother, and suffered humiliation and trampled dignity in the royal residence.He unlocked the inheritance of the Supreme Celestial Venerable, cultivated the Celestial Refining Divine Scripture, wielded the Celestial Refining Divine Tripod, and commanded the Heaven-locking Divine Seal!

Transmigrated into the novel you read and became the heir of the Duke, only to be trampled under the protagonist's foot?Passerby villain?Appeared in only one chapter?“Who are you looking down on?”Ian cursed his destiny and vowed to change everything.[Ding!][A new quest has been activated.]'Oh? Do I have a system? Even better.'[Basic Quest 1: Don't let your flower slip through your fingers.]'Nice, I won't let go of her anyway.'...[Basic Destiny Quest 1: Can You Finish What You Have Started?]'Bring it on!'...[Ding!][You are at an important fork in your fate.][Unique Destiny Quest: Fight with all you have.]'Heh? Who are you looking down on?'As Ian completed one quest after another, he also inadvertently began to fall into a vortex of the unknown. He discovered there was more to this world than described in the novel.'Damn it! These suspense and twists, one after another, are killing me!'---Tags: Smut, 18+, Harem, no incest, weak to strong, Romance, Wizard, Magic, Knight, System, Multiple Planes, Elf, Demons, Monsters

This appears to be this type of story:

Soon after knowing that she was going to marry Song Shi An, Su Tang made a firm resolution to barter to get a bill of divorce within one month!

The reasons are many with one being crucial, that pan of cold noodles has been an eyesore for a very long time!

Actually, it is this type of story:

Has lightning, dog blood, even more it has big meat. Love steamed buns, love beautiful meals, as well as love household tussles.

Go out to build the family fortune, enter the house to steadily accompany the lady of the house! Who dares to interfere? Stiff penalties being served!

- Description from Novelupdates

Aaron, a wildlife biologist, became a military strategist right after a global war between nations began.He never wanted to participate in the war but he had to, because he wanted to continue his studies on endangered species the moment the war was over, but to his surprise, everyone in his unit were killed, including him, and the next thing he knew, Aaron woke up in the body of a young noble having a similar name to his.However, he also noticed he had awoken in a world different from Earth.In this world, demonic beasts ran rampart with only one thought in mind, causing them to feed on anyone they see, be it humans, elves or even magical beasts as well.During his first encounter with a magical beast, Aaron awakened a system which allowed him to bond with magical beasts and to obtain terrifying abilities from these bloodcurdling magical beasts, so he used his experience as a wildlife biologist to help make it easier for him to bond with these beasts.However, Aaron also noticed he could evolve these beasts if their loyalty towards him had reached a certain level, so he vowed in his heart to grow strong enough to protect those he cared about in this world with the hope of living a happy, peaceful life where he'll be able to focus fully on his passion as a wildlife biologist.