Monohoshizao

Monohoshizao (lit. Laundry Pole) is a Magical katana of Kojiro Sasaki can stretch at will on command. His sword can easily cut a cliff in half, in the anime the range of stretch of Monohoshizao is possibility of continental level "Grow, Laundy Pole!!" His sword can easily cut a cliff in half, It's revealed that his sword can create portals through time, but he keep this power sealed within the handle using wrappings made from a lion's mare.