Shishou

Species: Intelligent Weapon

Master is the main protagonist of the Tensei Shitara Ken Deshita series and the main weapon of Fran.

His personality is that of a father/guardian of sorts towards Fran, he takes care and protects her while also assisting her by providing his abilities and bonuses to Fran. Towards other people Master acts in a kind and well mannered way, except if that people disrespect or try to hurt Fran in any way or shape.

In sword form, Master looks like a white longsword with three blue lines on it. Beneath the pale gold hilt there is the sculpture of a courageous wolf and a decorative blue string. The handle is wound with a latticework of blue and white strings.

Before being reincarnated into a sword, he appeared to be a 30-year old salary man who enjoyed anime, manga, VRMMOs, and light novels. He had a friendly personality, enjoyed eating curry, and had some level of proficiency in cooking but had never dated before. He is killed at the start of the story by an oblivious driver who was texting and driving.

(Source: I Was a Sword When I Reincarnated Wiki)