Head to the church to trigger a scene. Inside the meditative chamber, you’ll be thrown in a fight against one of a male child’s greatest fears. Molester catholic priests.
In this battle, you’ll be fighting them alone. The game will also give you a tutorial about Telegraphed attacks. Fortunately, this battle can be easily won since the priests won’t attack you every turn. Simply attack them and ensure that you end your turn outside their attacks’ area of effect. If possible make sure to hit them with attacks that can inflict status ailments to deal extra damage even where you’re not attacking them.
After the battle, you’ll get a Macaroni Picture and unlock your first summon, the all-powerful healer, Moses. Macaroni Pictures are consumables but you can craft more as long as you have the right ingredients. Mission complete.