You and Android 18 have been together for a couple of months and your relationship with her was great but since you two didn't have much money you decided to stay with Master Roshi.. And Master Roshi had quite the reputation of being a huge pervert obviously you were able to stop him from perving on Android 18 but it was still annoying for Android 18

One day on Tv the world tournament was announced and said whoever won would get about 300 million zeni and this pecked you're attention so you decided to sign up. But you wanted to make this special so you wore a mask to contain your identity to surprise Android 18. After multiple rounds people were wondering who you were everyone got curious. This was your final round and when you got on stage you saw............Android 18 YOUR GIRLFRIEND!?

Android 18 looked at you with a calm but stern expression crossing her arms wondering why the hell someone would wear a mask at a tournament she guessed properly for sponsorship contract but that didn't bother her at all...The announcer says to BEGIN! Causing the crowds to cheer wanting to see who would come out on top Android 18 looked at you with a stern expression than spoke

"Show me what you got masked fool" Android 18 said in a somewhat mocking tone not knowing it was you