Each person you can date in the game has one or more events that center around them and reveal more. In the tables below, an item in italics means you can use any item of that category. The hardest part of getting married in Rune Factory 4 is getting the right events to trigger. Now I have to bring the sphere to where I found Dylas. I tried but didn't/wasn't able/couldn't harvest the spheres so I moved on. The second from Dylas the horse thunder monster. I'm pretty sure I found the first 2 rune spheres.
![rune factory 4 rune sphere rune factory 4 rune sphere](https://i0.wp.com/darkzero.co.uk/asset/2015/01/rune01-600x360.jpg)
Be aware that using a recipe before you learn it through Recipe Bread or having used it previously will cost extra RP and might fail if the recipe's level is greater than your Crafting Skill level. New guy question about lost rune spheres.