In case you didn't know, the Demon Slayer manga (created by Koyoharu Gotouge) is complete, with the final chapter being published back in April 2020. It's a little early for a full trailer ...
Yoriichi Tsugikuni, the most powerful demon slayer, had unparalleled abilities and invented Sun Breathing. Yoriichi's Demon Slayer Mark and Transparent World prowess made him unbeatable in battle.