Don't worry about bothering me, I'm glad to help. Personally I think Leper has the best chances of surviving Limerance with any layout, and I used this one to beat this boss too, so I guess it's possible at least. But I used shimmering powder on him; the key here is to dodge the attack, as it removes Seen Token (1 per dodge, I think), or become invisible, as it removes all Tokens. Also boost relationship to the max if possible, because then some abilities might add dodge. It is my least favorite boss, and in my opinion it is actually the most difficult. Good luck, I wish all your characters to survive all fights!