[Crossover] The Swordsmith Won't Take the Blame

I am a professional swordsmith. I don't know where I came from or where I will go. My secret technique is that I can forge peerless blades and swords simply by putting materials in different proportions into the furnace. Whether it's Mikazuki Munechika or the Sword of Damocles, they should all call me Dad!!! Oshitari Yuushi thinks his childhood friend has been acting a little strange lately. It's one thing that she drags him around to museums all over the country to see sword exhibitions, but she inexplicably got a gym membership too, saying she wants to work on her biceps... Could it, could it be true that she said she was giving up the family business to become an ordinary swordsmith?! Things to know before reading: 1. This is a work to build up good karma. Absolutely! No missed updates! No rushed ending! No abandonment! 2. A silly, cheerful, melodramatic story. Not realistic, not logical, and no conspiracy theories.