Master’s Flirting With Me Again

“Warning: Yaoi content: This manga contains materials that might not be suitable to children under 17. By proceeding, you are confirming that you are 17 or older.”This is the story of a second-gen Immortal who upturned the world
under his mentor’s power. Ever since Jue Yue was adopted, the
Divine Master has adored him alone — even while admired by all
realms. “I’ll become my master’s Blade Guard to repay him!”