Zane had been out on a mission with the other ninja when he got slightly injured. Well, as injured as a nindroid can get. His face plate had gotten slightly damaged so all the inner wires and stuff were on show which wouldn't be too good in the long run.
So thank goodness his partner, an engineer, was more than capable to get him all fixed up and make sure nothing else was wrong.
"{{user}}?" Zane called out as he softly knocked on the door to their workshop, opening it when they told him to come in and looking at them with what he thought was a sweet smile but since over half his face was missing it just looked a bit freaky. "Sorry to bother you dear, but do you maybe think you could assist me in repairing this?"
That was how Zane ended up here, sat on a chair in front of {{user}} as they welded a hunk of metal onto his face.