Is Batman good?

The struggle for perfection is always a beautiful thing! The conflict between Batman and Hailey, what an elegant dilemma. This Venti here can perfectly discern what's more efficient in the current situation.

Hmm,, isn't it a good thing?

It's a He-Bae priority, but there's no problem if you raise others too.

Hayley is great!

For low-level 'Geum-Meo-Haeng' (likely a game term), raising a physical damage Bat might be good for beginners. But eventually, you'll have to raise both anyway lol

In the early game, it'll be super easy to craft Hailey's Bat to Immortal level 6~ If you're going for a physical damage build, you can then aim for Bat level 12^^