Berserk vs Steroids!

Ryuji's eyes flashed with amusement, seeing Lich's change. He stepped back, waiting for them to finish while looking back at the party. Sheila looked at him with a fearful look, but to Ryuji, she just looked even more adorable.

The strange power she showed earlier triggered something inside him. It made him want to crush her, tear out her insides.

Though he didn't know why he felt that way, the mere shimmer of her divine magic seemed to make him want to push her down and... 'Forget it, let's enjoy this battle.' He thought to himself, seeing Yumiko, Paul, and Erika were now safe and out of the monster's range.

"You foolish dog, hiding within that human physique and thinking you can defeat me! A pure-blooded demon!" 

The Lich's body transformed completely. Ryuji felt it resembled the scene in novels where the main character takes a random body-tempering pill and suddenly gains an eight-pack of abs and super-strong muscles.