After Transforming into an Elf Slave, He Learned to Change His Size Anywhere

Marriage change + system + one-on-one + Western fantasy + the heroine can change her size anywhere + the villain protagonist My name is An Zhi, and I was lucky enough to be reincarnated by the goddess into an elf named An Zhi, but why did you, the bastard goddess, throw me to the slave merchant? I was bought by a bastard named Bei Luo, and you actually want to have pure love. Did you know that there is a man's soul in this body? You actually made me a beast master, you bastard! Gou Xiu Jin Sa, do you want a cat girl or a dog girl today~ My name is Bei Luo, and I am a former hero who has been a hero for less than a minute. In this world of swords and magic, even if I am not a hero, I will definitely shine! I am very happy to be alive now, but I am actually bound to the system! There are three main streams in this world, swords, magic, and beast control. Since I cheated, I must control the beast! Of course it's just because this school is strong, it's not that I found that a beast that can be controlled can also be a beast mother! Today's Ah Chi is the dragon girl, tomorrow... She will be the cat girl! What about the day after tomorrow... Just the dog girl? There's also the cow girl, and there's more... Forget it, do it all again...