Maou na Ore to Fushihime no Yubiwa - Vol. 3 Ch. 14 - Welcome to the Demon World!

[MangaDex]

 

[SpecialProjectY]

Chiharu being a half demon was unexpected albeit the maids did foreshadowed it, but the transformation was a good clue, thought it's because he formed a contract with Zonmi je could re-grow his arm tho'

Iris and Chiharu goal is the same, she should form a contract, what's holding her back?