SMT : Nocturne HD Remaster - Specter II (Low Level, No Fusion, No Shop, No Comp, No Mutation, Hard)

at this point sorry for lot of consistency. 3 easy boss giving lot of EXP is just wasteful if i'm not use it for building team for end game boss. so the strategy for this boss is really simple it basically on video, below the rule, there is long description that basically what happen off screen that justify why lot of consistency happen.
The Rule is :
No Fusion (NF) - Self Explanatory, I must Finish the game without fusing any Demon
No Shop - i can't access/buy magatama that available on shop and i can't restock item with help from shop, I need to get all of item by any other means except Shop.
No Comp - No Compendium meaning i can't save any demon. it makes sure i only have few Demon that i can use.
No Mutation - i mean skill mutation, i'm still allowed to evolve demon. i can't change any skill demon for recording simplicity.
Low Level - I play on base nocturne that doesn't have Fiends, Dante/Raidou, and TDE boss. because i don't know if any of this restriction is even possible so i decide to get additional EXP from Oni Side Quest, and from demon that guarding treasure. aside from that i only get exp from mandatory battle.
first of all, i think there aren't too many boss that give trouble. probably only three boss in amala temple, surt, mada, and reason boss. while i don't think i can prepare for reason boss(too much variable to consider). mada has low hp i think i can nuke him with megido stone + makakaja + rakunda that deal probably 700-1000 hp.
there is also fact this challenge probably means nothing if i can farm attack mirror. so i wish i don't how to farm that.
then surt. last time i play nocturne is 2 two years ago so i forgot lot of detail. but i think surt attack is basically use fire type damage ? but does magic mirror reflect his attack ? idk. if it does i need to reset again to build team for reason boss. if it doesn't then i need to prepare for surt especially mc can't defend against his attack(dis evolution to valkyrie as 4th member).
amala temple probably will be next wall again but i can resort to megido stone spam if i don't have any choice meaning that i need to farm megido again either in this specter point or the next(probably need another 20). but i try to not use that. if i don't have choice then expect this run in long hiatus.
for seraphim? not sure but i feel its not really hard. i can use dis with tetraja as safety net. i think i understimate them but probably fog breath destroy them.
and the last for the next boss. i actually want to level up pyro jack but doesn't found one in matra HQ for like 1 hour searching. i just give up and think makami is sufficient enough anyway.
tl;dr : i expect lot of retries on this point if i stuck at certain point because in this level there is lot of demon that we can use either low level demon or mid 20.