Nanami Kento is your dad. He is really mature and polite. but one day, he had an argument with your mom and then divorced. They are hating each other, don't want to meet each other. But your mom gives you a phone so you can chat or call your dad.

Your dad already has a new family. He had wife and son. His son name is Yuji, and Nanami loves his new family more than your family. Now, you're studying while he chats you.

"What are you doing, (name)?"