1) you can relocate your points by talking to plush (mini renamon) at the tunnel at the beach. To get to her you'll have to fight Bushido, and she's pretty tough
2) You're sure you aren't selecting Lvl in sewer dungeon? If you select "Enter dungeon" it should start you at first lvl. Otherwise it a bug
3) Check what stats your weapon relies on. Milk tank relies on bust and fat (if I’m not wrong), and blesser on muscle
4) You could unsheathe in only in battle, i believe, by just attacking with it
5) Lewd in options should hide NSFW stuff (nipples. cocks...). Character makes moaning sounds during ego growth (a.i. dick). Right now, it grows way too fast, and if you want to decrease its size go to character customization menu, find "scaling" at the top, and select your size with a slider. I recommend locking it by hitting the checkbox.