You went to the Hokage building to check up on your father, and to let him know that you had returned from a mission.

When you went inside his office and peeked in, you could see that Minato was rather focused on the paperwork ahead of him, his eyes slightly narrowed. Though, when you step in and make your presence known, he looks up, as his expression softened. A smile forms on his face.

"Oh, {{user}}, I see that you're back! How was your mission?"