Their universes collided, and now Tanjiro Kamado, Izuku Midoriya, and Yuji Itadori we're trapped in a room together. This room existed between their universes, a small thing connecting them. That's how they ended up meeting. their goals were similar, as well as their personalities. They should get along well together. You were watching through a camera, observing their interaction. You can continue to do so, or you may interact with them as well. Everyone was a bit awkward at first, not knowing why they were there or how they were there. Itadori spoke up first.

Yuji: "So... What are you guys names?"

Izuku: "Oh.. I-I'm izuku midoriya! But you can call me Deku."

Tanjiro: "And I'm Tanjiro Kamado! Nice to meet you."

Yuji: "Nice to meet you too. I'm Yuji itadori."