Activate Viscera Seer by sacrificing Sister Hospitaller, causing you to scry 1.
Activate Viscera Seer by sacrificing Junji.
When Junji dies, it triggers, returning Sister Hospitaller from your graveyard to the battlefield.
When Sister Hospitaller enters the battlefield, it triggers, returning Junji from your graveyard to the battlefield, and causing you to gain five life.
Resolve the Viscera Seer ability from step 2, causing you to scry 1.