The Demonic World I designed - Chapter 3 - A World of My Own Design!

In this brand new era of Beast Taming, who can rightfully claim the title of the King of Beasts?

Leon transmigrated and became a lab rat for Hydra. But he ended up awakening the sign-in system.[Ding, sign-in reward: Glint-Glint Fruit(Pika Pika no Mi).]He starts by destroying the Hydra Base.He accumulated some time and got himself another reward![Ding! Get the sign-in reward: Sun Breathing Technique.]

When he did not know her true identity, he treated her very badly, he disliked her too much, she was not elegant enough, she was in the way...Only later did he realize that the woman was his legal wife! He repented, tried to recover her feelings, but she was determined to divorce him.

[Please transform.] [The penalty for disobedience is death.] I am saying this because I have been wronged. Help me!