Natsume Takashi met a strange monster one day. He didn't bully him like other monsters and said he would repay him. Just when he was wondering, a crack quietly appeared under his feet, and he fell into a different world!
The big monster from the high-end plane breaks through the void secretly to play in the lower plane but can't find his way home. When he was sad, a boy with a cat showed him the way home. When leaving, he secretly looked at the memory of his benefactor, saw his pitiful past, and decided to let his benefactor experience love. Well, that's it.
"Natsume's Book of Friends", "Douluo Dalu", "Naruto", "Prince of Tennis", "Kuroko's Basketball", etc., There are probably many