The Other World Is Still Uneasy

I, little salty fish, have been transported to this tattered and different world, and you are so stubborn that you force me to patch up holes as soon as you see them? What are you doing~ Ouch! I thought I was going through the extraordinary rise, but it turned out that people from other worlds were crowding in here. Fortunately, there is a gift disguised as a support for a martial arts game! But the locals are cultivating immortality! This broken system is getting more and more wrong. At first it was martial arts games, then Japanese sword and halberd movies, then European knights, and finally medieval warhammers appeared. Who is trying to harm me!