Uchi no Deshi ga Itsunomanika Jinrui Saikyou ni Natteite, Nanno Sainou mo Nai Shishou no Ore ga, Sore wo Koeru Uchuu Saikyou ni Go Nintei Sareteiru Kudan 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!?