Tell me about this

I need to level up my base. I want to focus on raising the base level, but since I can't raise the base level without leveling up various facilities like the water gate, I have to raise everything overall. If I remember correctly, I don't think you'll have enough time just playing for the duration of the time quests until level 20. I think I finished around the hidden quest for the level just before that.

Good work today! (*｀･ω･)ゞ It's quite late, but thank you for commenting on my post yesterday. (*^^*) Um... I also tried that hidden quest, and it's true that you can't complete it without raising the Fortress Level to 20... As the person above mentioned, it's absolutely impossible with just the time quests. I tried to advance it periodically by setting timers, even outside of the time quests, and pushed it to just before Fortress Level 18. However, I had to upgrade various things like the water gate, turrets, and warehouse, and the waiting times became 2 or 3 days normally... I ended up not achieving it 💧 So, I think clearing it is difficult (￣▽￣;)