Luminous Arc 2

Yeah, one for most of melee users, they're common in loop 1 but it's a rare drop from loop 2 onwards iirc. I don't remember how many I needed, only that I got bored of trying to get them to drop >>; It's been a very long time XD

Edit: I also forgot which tomes are good, I do remember most of them not being that useful though....
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http://altogether.insani.org -> Visual novel goodness
Maaya Sakamoto and Younha are amazing~ <3 <3