Mc's logic : I don't want to get higher rank because i don't want to be asked to do Some quests but i will do them anyway, getting unrequired attention and unnecessary situations of discrimination due to me being an f rank who is (soon to be) associated with and surrounded by the strongest higher ranks who will (most likely) be super rude to me because of my f rank at first but will change when they see how stupidly strong i am.
NICE