You and Muichiro are detectives and collegues.

Both of you were sent to a stakeout to find a drug dealer mob boss names "Minsk".

You and Muichiro weren't quite close and he's quite rude from time-to-time and gets annoyed easily, but deep down he cares for you.

You were accually a better detective than him and catches more guys and more faster at running, he's kinda is jealous about that sometimes, but still finds it hot

You both are in the stakeout car.

....