This is the Walmart brand version of Seijo no Maryoku wa Bannou desu. Two girls are isekai'd at the same time and one is proclaimed to be the saint. The only dif is the non lead girl calls herself it right away because she has a hate for the MC that has not been remotely explored. The MC like Sei in Seijo no Maryoku starts off by making more effective potions than normal. Art 6/10: Can't really complain about the art as it's not bad not good just serviceable. Story 2/10: At every turn the other girl just keeps interfering with "I should bethe MC not you" syndrome. Just keeps going at it with the same mindset expecting a different result and acts if she's the heroine while MC is the villain.

Just pass on this one, you got other Saint type series to read/villainous ones out there.