Manny is half human half ancient tiger spirit trying to hide from his father's enemies while also trying to fit in society. Frida is a normal girl trying to get through high school until she gets stuck having a new room mate

After returning home, Mario and Peach go missing and Luigi becomes a fugitive on the run after he supposedly kidnapped them. To clear his name, Luigi must piece together the clues and cross great distances to locate and confront the real culprit. But after suffering from severe depression and anger, is he willing to save the newly engaged couple, even if the world faces Armageddon?

He couldn't feel his body, but the happiness that swelled up in his chest was infinite. 'Thank you, everyone. Farewell.' Closing his eyes, his weak smile grew larger as his head fell to the side. His heart, his fragile yet strong human heart, gave one last tap... Before it stopped altogether.