Crude Armor and a Fierce Greeting

Luke chuckled and told her what happened.

From the moment Luke got into the car, Selina knew that he was in a good mood. She and the dog had been on patrol for almost a day, and she needed to listen to something interesting to lift her mood.

Luke knew it was a small request, and naturally wouldn't refuse.

When Luke told her how strong Nikki and Monica were, Selina forgot to eat the cake.

She gaped for a long while before she murmured, "Seriously? How can they be so strong? Wait, do you think they sneak out at night to beat up hooligans?"

Amused, Luke shook his head. "They might have beaten up some hooligans before, but it definitely isn't a habit. It would be very hard for them to hide their fighting habits from me, and I've never come across them in our database."

Going out at night to beat up hoodlums was also a form of actual combat.

As for how important it was to build up good habits in actual combat, just look at Selina.