Mr Gu's First Doting Marriage - Chapter 854 - 855: Like an Ordinary College Couple

Reborn into the world of Yugioh, it's natural if my goal is to become the best duelist!

The idiot Long Gen pretends to be a pig and eats a tiger, takes advantage of the girls in the village, travels across the countryside and forests, monopolizes the beauty and coquettishness, and achieves the legend of “Dragon Gen”. There is a widow in front of the door leaning on the door to watch, and a sister-in-law next door looking through the screen window… This book is determined to be a stallion, with the goal of pushing down and being pushed.

- Description from novelbuddy

Chen Quan Ran is a young general. Rather than return home and see his child wife, Mo Lan, he leads his army in battle for 10 years.

Mo Lan is a gentle bred young lady who has not met her husband Chen Quan Ran since their wedding day ten years ago. Chen Quan Ran’s grandma loves Mo Lan so she feigns illness to lure him home.

Chen Quan Ran can be heartless toward anyone except his grandma who raised him. He returns home and he surprisingly falls in love with his wife who has a secret…

Zavier met Cosmic Consciousness after his death. He was satisfied with every system that Cosmic Consciousness exhibited, so he wanted all of them. Surprisingly, the Cosmic Consciousness obliged him.

Zavier was reborn in an isekai full of magic and alchemy. Now, he had many routes to upgrade. Interestingly, to coordinate these systems, Cosmic Consciousness gave him the gift of being able to duplicate himself. He could clone a finite number of himself to manipulate these systems.

Magus, Alchemist, Mesmer, Tamer, Hunter, Vampire, Werewolf, Dragonknight, Necromancer.....

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By the way, it wouldn't appear NTR or some bullshit harem of courtships. MC of course will have harem but not for cliches.