Multiverse: Starting by Creating Delta of Fate

"Characters had no invincibility frames when using skills or Noble Phantasms." "Their own skills could even be locked by the boss." "This game was way too hard!" The two complained bitterly as they dodged and fled for their lives. Archer: "So the vixen really went mad to stop her man from being charmed and taken from her again, huh?" Medea: "What do you mean by that?" Archer: "Exactly what it sounds like. You've already been overdrawing your spiritual foundation, haven't you? With your skills, can you still repair it?