Hi there, I have stucked on some quests and events and can't progress further. 

Firstly I can't find blue flower crystal, I know that it supposed to be on the challange floor of spire of courage but it simply not showing, I have no trouble seeing and gathering red and purple tho.

Secondly when I do the quest with Adrianna about the dwarf fortress it says I need Reglium. Where to find that?

3rd, how to get Irinlia bad path bonus scene?

4th, I captured Flaire but her sex scene doesn't want to start. She keeps saying "I pay for my betrayal".

5th, in the Brexeet islands there is a tower with red, blue and yellow traps. I have no problem passing the red and blue but yellow is impossible. Do I need a potion or a skill activated to pass through? 

Lastly, dunno if this is because I couldn't progress with these quests/events but I can't get get Dea and Mia threesome scene either nor can I marry her.

It is an amazing game btw, have 90h in it already. Once I finished building my PC I will definitely support you :) Attached 2 image too, hope it's showing