MTL - Uzumaki Naruto is a Traitor - Chapter 57

In this world, orphans or just anyone without any hope for this world can apply to become a “walking target”. Their sole purpose is to be a practicing dummy for the students of the sect who train to become “Demon Hunters”. These students need “walking targets” to test their training on living, walking beings of flesh and blood.
In exchange, they will be provided with food & shelter.
Their existence value is lower than a slave, but if they manage to survive a few years they can receive a life long pension.

Xiao Han is such a “walking target”. One time he witnessed a powerful Demon Hunter disposing a demon. When the demon died, a fragment of the demon that managed to escape entered Xiao Han’s heart. No one saw that, and even Xiao Han himself only felt some discomfort for an instant.

But that thing in his heart soon gave Xiao Han visions, and the first one is of a cultivation method which allows Xiao Han to absorb damage to enhance his body. A perfect cultivation method for a “walking target”.

- Description from Novelupdates

[Beef buns: Can effectively replenish physical strength, enhance fitness, and are safe to eat.]Hungry Tain Lin looked at the cow dung in front of him and couldn't help but fall into contemplation.Is this cow dung or a beef bun?To eat, or not to eat? This is a question.

Lu Chen used to be a ranker of the most popular VRMMO game, Spirit of Grief. After a car accident turned his dreams into dust, his disability left him incapable of escaping the pit of mediocrity he was thrown into. Helpless and defeated, his story ended.Two years later, the Eternal Moon Corporation launched a new VRMMO called “Heavenblessed”, and Lu Chen stumbled into another terrible accident that left him in a complicated situation far beyond his ability to handle. That won’t stop him from rising to the top, however. Not again.Come witness the rise of the sword-wielding zombie and the relationships he makes during his journey to the apex! For riches and bi- ahem, for career and love!

I got transmigrated into a game I’ve never seen before.

I thought it was a top-notch RPG and spent 30 years on it.

I retired as a war hero and planned to spend my remaining time leisurely.

But it turns out, it was an academy story?