Bu ni Mi wo Sasagete Hyaku to Yonen. Elf de Yarinaosu Musha Shugyou (武に身を捧げて百と余年。エルフでやり直す武者修行) is a light novel series by Kekkaku Akashi with illustrations by bun150.
Slava, who devoted his entire life practicing martial arts, took a disciple from a foreign country. The undefeated martial artist, never losing a fight up until now, has been overcome by old age is about to take his last breath over a century after his birth. On the verge of death he has only two regrets. Not perfecting his martial arts that was passed down by his master, and leaving his adopted daughter and disciple, Alma, alone. His two dying wishes to her is that she takes the hidden scroll of the school and learn it's secrets, and that she love, have a family, and be happy like he wasn't able too.
The man who regrets his lifelong devotion to martial arts, was reincarnated into the race which is known for vast vitality, the Elven race. Using the knowledge from his previous life, he gleefully trained his body and…?