A little bit of info I found at gamefaqs 
It was translated from a japanese site, and it’s a bit hard toread, but it works.
-how do you open chest or climb up ladder?
go into “Skill” -> select the item to interact with -> select “Action”
-will LP go up after clearing a scenario?
no, LP is fixed, but HP MAY go up.
-i got poisoned!!
if you got hurt press the right analog stick to rest. hp recovery rate depends on character and ill status will recover after certain turns.
-what’s the meaning of the location’s color?
for places you are moving to, red word means “dangerous”, blue means “safe”, and yellow is in between.
-can you pass/standby/rest in battle?
no only on the map.
-how do you open magically locked chest?
instead of selecting what skill to use, scroll down and select an item with “(blah) Spell” ability, select it and scroll down on its list to select an attack spell, then you can reel to try to unlock the chest.
-how do you find out how many turns are left?
triangle button. (main quests dont have turn limits)
-can you do mass attack?
in the early stage of the game try to get the “Detarame Ya” (strife arrow?) bow skill, spells like gold spell’s “Shock” can also attack all enemies.
-any demerit for pass/standby/rest?
you get kicked back to the town when the turn expires.
-how do you increase a weapon’s life/energy?
unequip it, merge it with other materials or use the “Simple Fix” skill.
-can you run away from battle?
no.
-do ways of positioning the skill panels mean anything?
yes, you get bonus for placing them next to each other (joint), 3 in a row (line), or in a form of triangle (triangle).
-how do you fix weapon’s life/energy?
go to “Item”, select the item and select fix. wood spell’s fix magic can be used even in battle, and this spell can even fix 0 life/energy weapon.
-when do you use the “Diplomacy” skill?
when you meet monsters, of course IF it’s not going to attack you on sight (undead, devil and the like are hostile monsters which will attack you immediately) if succeed then the monster will disappear.
-can you always use “Fix Weapon” skill?
not when the life/energy of the weapon is 0 or too high (like above 20).
-how do you trade item?
in stores where you can only trade to get the item, select the item and you will see a list of YOUR items, highlight ones you want to trade and press triangle button. on the bottom of the screen you will then see the “Trade Rate” goes up. the trade is ok if the “Trade Rate” reaches 100 (so sometimes you have to give more than 1 item), then press ok to finalize the trade.
-how do you learn magic?
first you need to equip Magic Slate, then while in dungeon press square and go set up the Magic Slate you want to decode, then during battle use any magic at least once and after the battle you can select which spell to decode. when the bar under the spell’s full you successfully decoded the spell.
for casting magic, you need items with the proper “(blah) Magic” ability in order to be able to cast spells of that category. familiars have their own spells and since they can be used infinite times they are the best to use when learning magic.
-fotune telling only tells you what’s inside the chest?
fortune telling will increase the quality of the item in the chest. but watch out if you roll a “bomb” then the quality of the item will descrease instead.
-how do you flash (the lightbulb) out skills in battle?
it’s random, but it’s easier to flash out skills on tough enemies or bosses.
what to do when enemies always mess up my chain?
one way for getting out 4-chain combo is to have a person casts spells first, then the enemies will usually finish all their attacks (cause the spell is the slowest to act) and after that you can chain the rest 4 attacks without interruption.
-for example, will you get “Dagger Lv5” if you put “Dagger Lv3” and “Dagger Lv2” together?
no, if you put them next to each other you get a joint bonus, if you put one on top of the other it will only erase the other skill panel.
-can you do soft-reset?
it’s in the instruction manual…L1+R1+start+select, note do NOT press L2 and R2.
-which character is the easiest?
Loura.
-is the member dead when his/her/its LP reaches 0?
no LP will fully recover after the scenario.
-i died at the boss after all these hours…
for games which erase the interruption data it’s good to use the “copy trick” to copy the system file onto another memory card, thus you dont have to do everything again.
-what are those “Road Guide” skills for?
you can search the surronding and find chest or monster when you are in the proper environment. (Road/outside, Cave, Building…)
-how good are the martial arts? (punch kick throw)
GOOD. for one thing they dont require fixing!
but how good can you get with martial arts heavily depends on your equipment, your character’s natural speed, and you having the proper skill panel or not.
each martial art skill has THREE categories:
if you are heavy and without panel -> 1
if you are heavy but have panel -> 2
if you are light and without panel -> 2
if you are light and have panel -> 3
character’s weight is determined by the sum of the natural weight and the equipment, greater than 15 will be considered “heavy”. modified equipments are all 0 so that’s a good news…
light main characters (basic weight is small) are Judy (4) and Armic (5). Judy is 11. Cash is 18 so forget him.
light sub characters are Roy (0!!), the Silver Girl (7), Joseph (7), Anri (8).
-what’s after message “(blah)'s (boo) received!” means?
this means the item’s hidden power has being drawn out. if you do a good merge in merge store then some of these powers will be out to begin with, save you some times trying to draw them out in battle.
-what’s the “Maharaja” skill for?
you can sell items for better price with this skill equipped.
-what are some of the most important skills?
disarm trap, unlock, fortune telling, fix weapon. (this is why laura is easy to start)
-is there any merit for skills like “Weapon Seal”?
it’s a negative skill, it MAY raise more stats than other panels but your panel slots are better for other skills.
-why do you have to clear sub events?
because the main events can get very hard…
-what are “Good Ear”, “Good Reflex”, and “Boring” skills for? (really sorry about these translations, i know they r not perfect)
Good Ear: can listen well, can understand where the enemies are on the map.
Good Reflex: agile body, dodge rate for things like trap is higher (more circles in the reel).
Bring: plain. monsters will be likely to attack you, pretty obvious when in high level.
-you can not get more than 7 members?
you CAN but, you can only bring 7 into dungeons.
-do you really need shooter and spell caster?
they make the game easier, because of the possible mass attack skill/spell.
-how do you get the store to take out “digged items”?
use the “Sharp Eyes” skill.
-which one is better? bow or gun?
BOW. (but gun is actually not bad for spell casters, because of its fixed power)
-does weapon skill panels have effect on the reel?
definately. for example, with lv4 panel i can get 2 lv4 skills together on the reel, thus i can almost roll out a lv4 attack everytime!
-enemies’s rank depends on dungeon’s level? or time?
both, so try not to clear scenarios with too many tries, because you will only stats up when you finish the scenario and…time will make the monsters stronger.
-can you tell is the chest a mimic?
use the “Exaime” skill.
-which is better? “Combat Mastery” or “Punch”?
uh the logical choice is of couse “Combat Mastery” (good at punch kick and throw all together)
-enemies’ LP are so tough to decrease…
try to incrase the “Skill” attribute, then you can deal more LP damage in your attack.
-what’s the meaning of battle?
this time…well…probably just for trying to learn skills and spells…
but fight more will get you better panel at the end of the scenario.
-i cant take out negative skills!
for “Weapon Seal”, overwrite it with the specific weapon you are sealing.
-how do you recover LP?
IF you passed certain sub event and get the herb, then you can, otherwise, again wait til you finish the scenario. (or time’s up)
-what’s being carried over in second play and beyond?
item flow rate, chain list, and monster names.
some says skills that came out will be more easily to come out again in future plays.
-which panel bonus is the best?
line bonus.
-how do I view the potentials of magics and attributes?
press square (or go into Status and select detailed view)and select to view the potentials.
-will store’s list refresh when you exit the scenario after time’s up?
No. (thus again try not do linger on one scenario too many times)
-how come you can equip items to the wrong position?
this…i have no idea…but we can abuse this feature and use one of the craziest trick of the game…if you want you can put armor on all parts then…you have a perfect meat shield (defense will be like 60+ of course he then cant really do anything else).
-what are some of the rare materials?
Lordstar, Dragonheart, Siva’s Queen…
-how do you use the “Forbidden Spell”?
you need the “Forbidden Spell” of course. items with “Magic Stone” base have such abililty.
-if enemy’s hp is 0 then we can deal more LP damage?
Yes.
-can you overwrite the Magic Slate panel after you have decoded all the spells on it?
yes, although leave them on will get you bonus, but if it’s just a low level slate then it doesnt really matter.
-where can i get items with “(blah) Spell” ability?
magic shop sells dagger, wand, and accessory with these ability on it.
-what’s the meaning of reeling for spell?
the result will vary depends on which element you roll out.
-how can i get “Regeneration” skill on the item?
use the Dragonheart material.
-what is “Spell Merge”?
it’s another family of skill panels, where you can merge spells to get the ultimate series of spells. sadly this is extremely rare to get these panels…darn.
-what are “Deflect” and “Knife Guard”?
these supportive abilities can block attacks for you. just like having a shield.
Wow… still… I’ll still appreaciate the OST anyways