noun
rerolling; reset marathon
Gaming slang for repeatedly restarting or reinstalling a game, especially mobile gacha games, to get a desired character or item from the initial free pulls. Abbreviation of リセットマラソン.
See also: リセットマラソン
新作ゲームでリセマラをするのに半日かかった。
It took me half a day to reroll in the new game.
リセマラで目当てのキャラを引
I keep restarting until I pull the character I want through rerolling.