Backstabbed in a Backwater Dungeon: Volume 7 (Light Novel) by Meikyou Shisui

For Light and his allies in the Great Tower, the war with the Beastfolk Federation proved to be little more than a bump in the road, but the repercussions turn out to be more of an issue than originally assumed. News of the tower’s overwhelming victory spreads around the world like wildfire, making a number of the other nations sit up and take notice, and causing the next multinational summit to be brought forward as a matter of urgency. This has the knock-on effect of accelerating the plans of Princess Lilith of the Human Kingdom, who wishes to use the event to overthrow her father and seize the crown so that she can lead her nation toward a brighter future. However, she cannot accomplish her goals alone, so she comes to Light for help. Meanwhile, the manner of the Great Tower’s victory over the Beastfolk Federation’s army attracts the attention of another cabal of powerful Masters, who are quick to send out one of their own to investigate the source of the tower’s remarkable power.