Please answer the following question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: Who is contacted through Tifa? Title: Final Fantasy VII: Advent Children Movie plot: See also: Characters of the Final Fantasy VII series and Final Fantasy VII Plot Setting[edit] Advent Children takes place two years following the events of the 1997 role-playing video game Final Fantasy VII, during which the antagonist Sephiroth attempted to absorb the Lifestream (the lifeblood and soul of the planet) and be reborn as a god.[1] He was defeated by Cloud Strife and his companions but Sephiroth's final spell, Meteor, destroyed the city of Midgar. Since the end of the game, the survivors of Midgar founded the new city of Edge where Cloud and his childhood friend Tifa Lockhart now run a courier service and are the caretakers of orphans Denzel and Marlene. Cloud is still haunted by his role in the death of Aerith Gainsborough, who was killed by Sephiroth. In addition, both he and Denzel are infected with a mysterious new ailment known as "Geostigma", which has no known cure. When the film opens, Cloud has recently moved out and isolated himself from his friends. Story[edit] Cloud is contacted through Tifa and summoned to a meeting with the Shinra Company's former president Rufus Shinra, who was presumed killed in Final Fantasy VII.[2] Rufus asks for Cloud's help to stop Kadaj, Loz, and Yazoo. The trio are physical manifestations of Sephiroth's surviving spirit, and are seeking to resurrect him using the remains of the extraterrestrial villain Jenova.[3] Cloud refuses to help and leaves. Meanwhile, Kadaj and his colleagues are recruiting children infected with Geostigma. Denzel falls in with the group, attracted by their promises of a cure for the disease. Loz follows Tifa and Marlene to Aerith's church, where they had gone looking for Cloud, and attacks them. Tifa is knocked unconscious in the fight and Loz kidnapped Marlene. All the kidnapped children are taken to the ruins of the mystical Forgotten City, where Kadaj embraces them as brethren and announces his intention for them all to be reunited with Jenova. When Cloud arrives to rescue them, he is overpowered by Kadaj's gang, but is rescued...
A:
Cloud