The answer of the second riddle - Reminiscence
Let's see...
- The first line "Blue but red, cursed but also blessed"
What has the blue but also red color in it? Cursed but blessed? We don't know what they mean yet, so let's move on...
- The second line "Memories were sealed inside...brought back the joys
'Memories' were in 'it' and it brought the joys, but to who? the owner maybe?
- The third line "Reminiscence, nostalgia...and wonder..."
'Reminiscence' was the 'memories' of someone which was in 'it'
- The fourth line "...Fascinated in what came with the fire..."
The 'what came with the fire' = what 'it' reacted when it met with 'the fire'
- The fifth line "And finally"
Nothing important here...
- The sixth line "The tears which was trapped in her eyes"
Most people misunderstood this line...what it truly meant was = 'The tears'(plural?) 'which was trapped in her(the owner's) eyes. It had 'the owner' so it clearly not Pandora...
- The seventh line "...Dropped down on the floor of red shining room..."
'red shining room'? There's only room that was 'shining red' and it was at the Hopper Magic Show owned by Jody Hopper, wasn't it? It was blue and red too and she said that it was cursed, and at the end when it touched with the fire, it shown her memories when she started practiced magic tricks...
So the answer was...Red Tear, the cursed jewel...
Let's go solve the next riddle, shall we?