Return of The Genius Swordmaster

Alternative

The return of the genius Sword Saint ~ I'm a failure with zero mana but actually the strongest~ / The return of the genius Sword Saint ~ I'm a failure with zero mana but actually the strongest~; Kaettekita Tensai Kensei ~Maryoku Zero no Ochikoborenanoni Jitsuwa Saikyou~; 帰ってきた天才剣聖〜魔力ゼロの落ちこぼれなのに実は最強〜