(1 year later)
It has been whole year since I have started training with sword who knew that I have talent for it. I have been progressing steadily in my sword arts.
My mana control has been improved to another level. My training this year has been quite fruitful I have achieved middle class devil power without using sacred gear. Every day I would push myself to limits and then try to break it.
This year I have hunted many fallen angels and stray devil I don't know why this town is full of them is something attracting them or their have been always this many of them around.
While using boosted gear I have arrived at bottleneck for last six month I am trying to achieve balance breaker but there is still one step missing after all the effort I still can't take it but I am not worried about it know. The worst part is my magic power is starting to increase very slowly at this rate I don't know when will I achieve high class devil power level.
The most important thing is I have been thinking about how to achieve immortality without becoming someone slave. First I thought if I reached the level of ultimate class devil I may achieve immortality by becoming a low class god.
But Ddraig shattered my this dream if it was this easy many human people would have become god by achieving ultimate class magic power for humans their is requirement of having faith other people should worship him. So that plan was cancelled I might be able to achieve ultimate class magic power in next decade but I will still not be free of the restraint of limit of human life span. I will think about it later for now my priority is increasing my strength.
(1 year later)
After a year of trying every method I finally achieved balance breaker it was quit addicting the feeling of power that could crush everything The mountain on which I was practicing was destroyed into small rocks.
I quickly got out of the balance breaker and leaved that place I was sure that this much noise must have alerted those powerful god and devil and I was still not powerful enough to confront them if a super class devil or a chief god came it will be a game over for me.
I have been laying low from that time and number of devils and fallen have also increased in kuoh town and the number of exorcist have also increased in town I don't know it's because of me or some other event might have happened. I am still laying low until those bastard leave this place
For last few months I haven't practiced magic one day. I have been practicing kendo all this time my progress was applauding now I can beat all those instructor in dojo.
I have left the dojo because they can't teach me anything I am still practicing with sword but on my own. Now my focus is on hand to hand combat which will be more helpful in fighting with my sacred gear.
My mana hasn't increased this much but I am now sure I can beat those low class devil and fight on par with mid class only with my body without using any magic. That's quit a achievement for me it also confirm that humans can reach height of other powerful being with lot of training.
My social life has been awkward for few years now. The people who were close to me drifted slowly now I am all alone but I am grateful for that they have left me on there own accord otherwise I would have to make them leave me since I don't have much of time as human to live to achieve my dream I will do anything. There are countless stars and different dimension where I want to go but I have limited time.
If I can't achieve immortality through magic alone I will need help of science then I have started to study all biological material related to human body which will be helpful in case if I want to achieve immortality I have to get help from every place where I can get it. I have some plans which I will start moving from now on.