Hidden Mission Clear Report (Castle Level 12 Achieved)

Reporting after clearing the hidden mission up to Castle Rank 12. It was quite easy and the rewards were good. I cleared the hidden mission by following ① to ⑤ below. If you follow the arrows, you should eventually understand the system. From there, I feel like it's okay to deviate to the shortest route, ignoring arrows and missions. ☆Clear Procedure ① Follow the arrows until you can click on the castle. ② Click on the castle and raise its level if possible. ③ If you can't raise the castle level, click on the insufficient condition (in red). ④ If the insufficient condition is to raise facility levels, raise them. ⑤ If the insufficient condition is not a facility level, i.e., chapter progression, proceed. Regarding ⑤, if you encounter a 5-person party battle during chapter progression, you'll need to adventure to gain experience or raise your rank. I'll attach an image of my current progression for reference. ☆Character Impressions Forest Fairy: Healer. Improved the party's sustained combat capability through healing. Contributed significantly as the party often went from near-death to full health. Snow Queen: Debuffer. Her special move guarantees a freeze. Being able to lock down enemies was a huge help. The other 3: DPS and AoE roles. I cleared it with plenty of time to spare before PvP unlock (within 7 days).