The Regressed Blood Knight's Strategy - Chapter 124

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.

Ayaan is a young resident aspiring to be a surgeon, the final stage of a full on graduated plague doctor. However, in her attempt to redeem herself after a sudden discontinuation, she finds herself unravelling mysteries about her institution that are rather gut wrenching. Stick around and watch her persevere in a world full of monsters; creatures and humans alike.

Kanzaki Ryoma transmigrated into the world of Tokyo Ghoul and began fusing with Uchiha Madara. Determined to bring an end to this twisted world, he chose to implement the “Eye of the Moon Plan” and ultimately activated the Infinite Tsukuyomi!