So we already got Assassin(Liz), Alchemist(Slytry) and Whatever-he-is(Cry). If we are going by traditional RPG, the leftover is Warrior/Knight, Mage and Healer/Support. But seeing the lack of mages in this title, could be Warrior/Damage Dealer, Knight/Tank and Healer/Support.
The value of money is wrong. You need to divide everything by 100. The biggest value of a Japanese banknote(paper money) is 10,000 Yen, which was used in page 24. Probably the translator mistaking man[万] as a million rather than 10,000. A million is 100x10,000 or 100man[100万]
Ok, the second rule feels pretty stupid. They have Yutori, his "precious" client, they could just torture her. WHY TF WHOULD YOU NOT TORTURE THE TRAITOR. The Author is trying hard to make Sawaragi playing the game.