Beast Control: I, the Elf, Was Contracted by the Blonde Girl

(The male protagonist is a beast master + the female protagonist is a beast master + no harem) The male protagonist Lin Yu traveled to the world of beast control and became an elf egg. The heroine is not very talented at controlling beasts, but she is a rich little woman who spends money like crazy The heroine contracts the male protagonist in Chapter 2. The male protagonist is directly in human form.