Round 1: A sword duel. Mulan has a jian and a fan. Goblin Slayer has his shortsword. Neither are wearing any sort of armor.
Round 2: Goblin Slayer is fully equipped and ambushes a camp that Mulan has set up in the forest. Mushu tells Mulan that he's coming and she gets seven minutes of prep plus a basic description of Goblin Slayer's equipment. She has a jian, a bow and arrows, and survival gear including rope and fire starting materials/tools. Mushu is also willing to help however he can.
She shoots a little kid and then tries to seduce him in the very beginning of Dragon Ball. She also married a guy with a body count likely in the tens of billions who sort of killed the guy she dumped to be with him and a few of her other friends. She's pretty much worse than Dr. Gero.