Wortenia Senki (WN) - Volume 2 Chapter 1 (The despair of those who are being summoned)

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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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Traversing into a Fantasy World, Watson became the youngest son of a run-down baron, ranked eight in the family.

Dao Fa leads to spirits, and medical therapy leads to ghosts.

A third-rate university graduate who was supposed to run around in a mess for his livelihood, but because of an inadvertent shot to save people, whether it is extremely peaceful and rewarding for his good people, he has obtained the legendary inheritance of the mysterious arts and medical methods of the experts in the realm of self-cultivation. Another brand new and weird new world!

- Description from novelbuddy