Takarakuji de 40-oku Atattandakedo Isekai ni Ijuu Suru - Chapter 21

When Logan and his classmates are suddenly transported to a world teetering on the brink of destruction, they find themselves thrust into a desperate battle against a relentless demon invasion. In this new realm of magic and peril, each student discovers unique powers to aid humanity's fight for survival. However, Logan's ability to tame creatures is deemed the weakest among his peers, earning him scorn and ridicule.Despite the doubts of those around him, Logan's determination never wavers. As he bonds with mystical beasts and uncovers their hidden strengths, he begins to realize that his power might be the key to turning the tide of war. With every creature he tames, Logan grows stronger, proving that true strength lies not in raw power but in the heart and courage to stand against overwhelming odds.Logan's journey is not just about battling demons; it's also a personal struggle against his own loner personality. Having always been an outsider, Logan must learn to trust and connect with others, both human and beast. His solitary nature is challenged as he forms unlikely friendships and alliances, discovering that unity and cooperation are essential in the fight for survival.

One god, one faith, one world, one mage… I am the only mage in the world.

- Description from Ptwxz (translated)

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MC: I am a dragon? Cool!
Also, MC: Wait, most of the dragons died after centuries of being hunted for their expensive materials, and when beings called players descended with their powerful systems and immortality, they hunted down rest of them ... and I am the last one... I am fucked!!!
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Join our MC, a former player on his journey not to become a legendary rank item, in a world of the game that he used to play.
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When Su Yaya awakened, she found herself in a novel world as the CEO’s Substitute Wife–-a mere cannon fodder. Knowing that divorce and a tragic ending was awaiting her once her look-alike, the President’s first love returns, Su Yaya only trusted one thing: Money.

She curried favor with her husband each day, saved up resources, and served him as a faithful wife. It was better to leave a good impression on him before separation so she could avoid her death flags.

The overbearing President was very satisfied with her and personally gave her his platinum card: “Take it and buy anything you’d like!” Su Yaya happily accepted. Of course she would take advantage of his pampering before the female protagonist appears!

As the CEO unexpectedly falls deeper despite this transactional relationship, he never imagined that his wife would one day disappear from his side.

- Description from Novelupdates