Kaimetsuou to 12-nin no Hoshi no Miko
The Vanisher King and His 12 Starlight Maidens·怪滅王と12人の星の巫女
A high school student discovers he has a unique ability after rescuing a devil, revealing a birthmark on his tongue known as the Seal of Solomon, which grants control over sorcery and devils. However, each use of this power shortens his life, giving him three years before death. To survive, he must form contracts with twelve individuals marked with a special sign, by licking each of their signs with his tongue.