After Stealing Hero's Mother, I Reincarnated in the Fantasy World!

[Warning! Contains sex scenes, lemons and perverted mc. Read at your own risk.] Rain, a typical young master, led a fine life, enjoying power and status. But once confronted by the hero, he suffered a crushing defeat. Unable to accept this reality, he continued to confront him, not knowing that he was doomed to defeat from the start. Eventually, when he had lost everything he held dear and was in the depths of despair, a thought came to him. "What the fuck am I doing?" "Why am I not using my brain and d*ck to defeat the protagonist? After that, he found his own way to crush the hero...