Master of Monster Synthesis - Chapter 139 - 116: The Inhuman Spine-eating Gu (Seeking Subscriptions)_2

Noda Sagiri is the only girl in her karate club, she has little feminine attributes but has a hidden talent in making sweets. On a whim she decided to bring her handmade cookies to her club, but after one of the idols of the school Michel François tasted her cookie he suddenly declared “I must meet with the girl who made these cookies!”. The search for the cookie maker began, however it seems that no one would come to expect that Sagiri is the one who made them….

In a world fraught with innumerable dangers where living day by day is a struggle, a young man from the modern age transmigrated into such a world, accompanied by a peculiar system made for assassination.

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.

- Description from Novelupdates