Please note, this end has several different versions depending on your previous choices. Better to have spared Sandayu Oda, Hanako's bodyguard during the boss fight at the end of his kidnapping and then saved Takemura during the Search and Destroy mission. Otherwise Takemura will die and you will lose the opportunity to obtain the trophy associated with him. But even if you killed it, you can choose that ending which is always available no matter your other choices on the adventure.
You are given a final choice at the very end of this route, after the boss fight you can choose between returning to Earth or being stored as an engram in Mikoshi. There are no special conditions again. You will get fantastic Legendary Gorilla Fists as a reward either way.