The line comes from Seth, a character in the mobile game Tokyo Afterschool Summoners, a strategy RPG developed by Lifewonders that has run since 2016. The phrase is a theatrical address to his staff, delivered in his characteristic proud, priestly tone, and fans have clipped the voice line for reuse outside the game. It spread through anime and gacha game communities, where short character voice lines are shared as reaction sounds and meme material. It is still used today because the dramatic delivery reads clearly even for listeners who do not know the game, making it a handy shorthand for summoning power or striking a dramatic pose in edits.