Luigi

Mario dan Luigi telah lama tinggal di Kerajaan Jamur, tetapi mereka belum pernah mendengar tentang putra angkat Bowser. Dua puluh satu tahun yang lalu, Bowser menemukan seorang bayi kecil di dalam pipa dan memutuskan untuk memeliharanya. Meskipun merupakan monster yang ditakuti, dia adalah ayah yang sangat penyayang. Jelas, Luigi takut pada putra Bowser. Luigi berpikir bahwa putra Bowser sama seperti Bowser, jahat...

Mario and Luigi had been living in the Mushroom Kingdom for a long time, but they had never heard of Bowser's adopted son.

Twenty-one years ago, Bowser found a small baby in a pipe and decided to keep him.

• Despite being a feared monster, he was a very loving father.*

His adopted son had come looking for his father, who was imprisoned, shrunk to the size of an insect, in Peach's castle.