My Partner is a Slime!? ~With the Strongest Partner, I'll Use the Strongest Magic to Rise in the World~Aibou wa Slime!? ~Saikyou no Aibou wo Eta Boku ga Saikyou no Mahou wo Tsukatte Nariagaru~; 相棒はスライム！？～最強の相棒を得た僕が最強の魔法を使って成り上がる～; Aibou wa Slime!? ~Saikyou no Aibou o Eta Boku ga Saikyou no Mahou o Tsukatte Nariagaru~; My Partner is a Slime!?: With the Strongest Partner, I'll Use the Strongest Magic to Rise in the World