Hand Seals? What Decent Person Uses Hand Seals?

[Spiritual qi revival, Naruto, One Piece, Wood Release, campus belle] Spiritual qi revives, ferocious beasts lay siege to cities, and demons wreak havoc. Humanity cultivates countless forms of ninjutsu to face every kind of danger. But to perform these techniques, you have to make hand signs! Su Fang transmigrates into this absurd world and, through the absurd manual System, gets an absurd anime passive ability! As his opponents weave complicated hand signs for dazzling ninjutsu, Su Fang yawns out of boredom and mocks them. “No way, people actually still have to make hand signs to use ninjutsu?” “Watch this. I clap my hands, and whatever I call appears!” “Who needs hand signs, anyway?”