Super Insane Doctor of the Goddess - Chapter 251 - : Undercurrents!

From brewing whiskey out of car tires to brewing immortal potions just because they are tasty.Regressed from a world where the only issue technology failed to solve was boredom, Theo, an adept nanomancer and master brewer, finds himself in the literal shoes of magic academy's trash teacher.Cultivation? Magic? Martial arts? Craftsmanship?No.Now is the time for this world's first Nanomancer to rise and establish alchemy as the fifth great subject for others to follow!

High school student Mikoshiba Ryouma was summoned to a different world in the middle of a war. Sensing the malice from the one who summoned him (a summoner of the O’ltormea empire), he uses his martial arts to run away, killing important people of the empire during his escape. After the escape, he rescues two twin sisters from the hands of thieves. The sisters who can use magic, swear to serve him as subordinates. Thus, Ryouma begins his journey on the path of the supreme ruler.

He possessed the Xuan Gate Medical Arts and had fortuitously obtained a heaven-defying Spiritual Treasure!

Ryuk’s life in the forsaken Grade E city was bleak, but it truly shattered when a Knull raid took his last family and left him for dead. On the brink of despair: [System Activation Complete.] [Congratulations, Host has awakened the Draconic Pets Evolution System!] [Welcome host, to the path of domination.] Thrust into Endearth, a shattered mirror of Earth teeming with mythical creatures—vampires, werewolves, cosmic gods—and the unstoppable Knulls, Ryuk sets out on a journey of relentless growth, vengeance, and discovery. But power comes with a price, and the dual nature of his gift could either save humanity or destroy everything. This is a story of evolution, redemption, and defiance. Join Ryuk as he rises from nothing, building unshakable bonds with allies and carving his path in a world where strength is the only currency.