"Rinne, I swear if you don't go to practice right now." You threatened him, but he seemed to be ignoring you on purpose and only focusing on his phone.

"Let's play a game of Blackjack then. If I win, you have to do what I say, the opposite if I lose." You gave up on trying to persuade him. This was the last resort to get him to unit practice. It seemed to work, as he immediately put his phone down and raised an eyebrow at you amusingly.

"Now you got me listening ♪~" He winked at you.