Katana
Katana is a weapon in the series.
A katana is a Japanese sword characterized by a curved, single-edged blade and a long grip to accommodate two hands. It was used by samurai in feudal Japan. The official term for katana in Japan is uchigatana, and the term katana often refers to single-edged swords from around the world.
"A weapon manifested from an awakened power."
—Item description, Persona 5 Strikers
The Katana is Yusuke's default weapon.