Becoming a King with a Sign-in-system

it's so so the novel is not bad but their major complaint is author messes up the currency system of the world he got a reward of 100 million money assuming it is yen 💴 cause he is using that currency he bought 25 million worth of cars author say to not worry about the value like bro if we don't have a clear idea about the world we don't know anything if the yen he is using like USD in the real world it is too expensive or the Japanese yen then is too cheap like he bought around 5 luxury car ferrari mclaren etc and how will we know the valuation of the business mc buying or starting if we don't have a clear picture of currency...... I mean it would be a problem in fantasy type novel but here in this type of urban novel u have to keep the valuation system clear

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