Using Unlimited release skill to save my territory in another world

Ryoma was a high school student and was working quite hard every day to get into the best college.

His parents put a lot of pressure on him to score better, without providing him any motivation or showing any concerns for his deteriorating health.

So one day, after being fed up with all the pressure, he tried to relieve his stress for the first time in his life. But unexpectedly, he died due to excess exertion before he could relieve himself.
Ryoma died in a shameful manner but life gave him another chance and he reincarnated as a baby in another world.

However, life was even more difficult here. Although he was given 5 powerful skills, he did not get the chance to use them. He was made into a serf before he could even become powerful and suffered both mentally and physically.

But ultimately luck shined on him and he was taken in by a noble family that owned a poor territory in the frontier. Will Ryoma be able to help this noble family and save their land from the enemies surrounding their territory?

Follow the exciting journey of Ryoma and how he uses his skills especially the Unlimited release skill, to rise from the status of serf to become.....something else entirely.
The story is sad till chapter 10 so please bear with it till then. The fun part starts after that.

*Note all characters engaging in ecchi or adult activities are 18 and above. This is an R-18 novel so only 18 and above are allowed to read this novel.

(Note: this story is purely fictional. any resemblance to actual events or persons is purely coincidental. Please do not imitate. )

(Note: Please do not apply any methods of medical treatment mentioned in this novel in real life. This is a fiction novel and you should refer to your doctor in case you have medical problems.)