This game is a total piece of shit. The missions are easy to find, just hit the big purple Weekly Missions thing.
Missions:
- Daily login, 5 times
- Land a killing blow on Red Oni, 5 times
- Land a killing blow on Speed Demon, 5 times
- Land a killing blow on Fulst, 5 times
- Win two PvP battles in a row, 5 times
Okay, so, these missions are a complete fucking nightmare. Mostly because the game is complete garbage. But also because the missions are garbage. So, Red Oni, Speed Demon and Fulst are all raid bosses. Raid bosses are randomly spawned when you play through the main Quest. Only one raid boss can be up at a time, so if you get Red Onis even after five, tough shit. You need to kill that thing, or request help and hope that somebody else bothers. Furthermore, each raid boss you find levels it up, so if they outlevel you, you just get fucked. At least main Quest is free of Stamina usage until level 30, so finding the raid bosses is nothing but a test of patience.
You need at least 1 BP per raid boss (assuming that you're strong enough), and these regenerate at the amazing rate of one per 20 minutes, with a maximum of six. If you by some miracle never lose against a raid boss, never find a raid boss that you don't need and never lose a PvP battle, the very minimum of BP that you need is 25. But chances are you'll need waayyyyy more BP than that, and since these are technically under "weekly missions" we have no idea if they'll reset on Monday...