Uchi no Deshi ga Itsunomanika Jinrui Saikyou ni Natteite, Nanno Sainou mo Nai Shishou no Ore ga, Sore o Koeru Uchuu Saikyou ni Go Nintei Sareteiru Ken ni tsuite

Takumi was banished from the party and lived alone in the mountains. Leia, who claims to be a disciple of Alice, a girl who once protected and cared for him, came to him. She has become a disciple of Takumi, who is rumored to be the strongest in the universe. Since then, a dragon, a great sage, and a goblin king have visited Takumi, who has no talent, and is suspected to be a demon king !?