[Hashirama and Madara] The Sunset's Afterglow

The Battle of the Valley of the End ended in Senju Hashirama's resounding victory. Uchiha Madara's whereabouts were unknown. * Uchiha Madara silently stared at the [System], which was babbling away in his mental space, having unilaterally decided to send him to other worlds. [System]: Don't worry. In these few trial worlds, you won't exist. You can make your mark in parallel worlds, prepare for your ideals, and gain some experience! Uchiha Madara was swayed. [System]: And what's more, as far as I know, in a few of those worlds Uchiha Izuna is still clan head, and Senju Hashirama is helping his younger brother fight the Uchiha... Uchiha Madara: Send me there right now! * After maxing out the favorability of the world (Hashirama), the System made its escape with a clear conscience, then told Uchiha Madara that Senju Hashirama, who had just become his lover, seemed to be the Hashirama from his own world. Uchiha Madara: ?! Theme: What if.