Too Regretful to Live, Yet, Unwilling to Die

A tale of a young knight, who were borned in a mighty clan filled with warriors. He enrolled down in an official test to be a knight at such a young age. However, did being a knight took his life to a better one? With his dark past, and depressed self, he lived to be a normal knight by his countryside. Just like usual day, he was walking back home when he encountered something familiar. Though, hesitating, he took himself to do what is right.. Will this change his life for the better, or will it turns into chaos?