Do dailies for koban and resource stocks, don't worry about smithing swords/troops or doing bosses or kebishi though. Three PvP wins and three successful expeditions are priority, you can also spam internal affairs and pick maps with flowers/fish right now to unlock a seasonal background. Grind tantou to lv100 to send on kiwame, then use tantouwame for all events. Until you have enough kiwame sets it's worth building a unit of ootachi and three troop tachi for day map events and PvP where they can brute force things. If you have plenty tantouwame already you can now try raising ootachiwame and yariwame as they're generally useful and less prone to dying than uchiwame and wakiwame (I like not wasting potential exp too so if it needs ootachi then I want ones that'll gain levels).>>3425901
What I do is make a favourite or two tag along with the tantouwame (guns+first move helps keep enemies from having a chance to hurt them), though at the moment it's double exp so I've just got a full unit of cute swords to level together and one tantou I'm sending off soon.