Persona 3 Request 30
For this Request you will need to find an item called "Homunculus". You can find them from exploring Tartarus or you can trade gems for one at the antique store in the Paulownia Mall. Homunculus' are extremely useful items that take the full hit for you when an instant kill attack is effective against your character. A Homunculus' will not be consumed on any other team member than you.
You don't get a choice in their consumption so if you get one be sure to complete this request before it's automatically lost in battle!