Jewelry : i think personal jewelry much better than event jewelry, but at nutaku not all of them have it

Whaleship: meh, i'll do it slowly, not have all 16 unit of each type fully leveled, just fill it to 16 and fill the rest with high TP

future: from what i heard bond crystals is important so its worth , i think dmm players should be can more explained ......

ampys : its worth same like lv 5 manyu, so ideally you give ampies at lv 1-30 of your knight to minimize your cost, feed them to your waifus choice, and yes when you upgrade and adding stats become red means it reach the cap

farming : 2-1 gives most exp/stam efficiency for newbie until 12-5. 12-5 gives most exp/stam from all of map , event 80 stam gives LC but with low exp, so if you want to level up to the max obviously you should farm 12-5 ( with higher levels means you have more stamina)