A wave of mana burst out from Markus as an uncontrollable rage boiled over from within. Being only at the Late Stage of Mana Condensation realm, this wave couldn't have made it far, but Marie was much too close to Markus and had unwittingly taken a decent brunt of the damage. She started to sweat profusely as her mental sirens screamed out in fear. Jean, who happened to be next to Marie, also suffered a similar backlash. Fortunately, or unfortunately, her general detachment from her emotions had left her face sporting a rather calm expression. But the rest of her body wasn't inert, and her back was thus completely drenched in sweat.
But Markus wasn't completely lost in his outburst. He took an elongated breath and immediately retracted his inadvertently forceful mana projection. "Sorry," he said immediately.
"But Big Sis, do you realise what you're proposing is extremely disrespectful to Master?" Markus continued with a stern tone.