It may have been a while if you are playing Ragnarok Online Mobile since Day 1 but I am pretty sure some of you have missed this. It might be because of some overwhelming story quests and event quests that go with especially on this month of Chinese New Year and Valentine’s Day. This is just a daily instance of quests on the three maps of Juno City namely, Border Checkpoint, Einbroch Field & Juno City.
You need to complete three quests on each map which are just fairly easy to finish and each quest done gives you Base and Job Exp. After which, you need to talk to the three NPC on the lower left side of the Juno City map and complete their requirements wherein they will give you a Juno Chest each. That is a max of 3 Juno chests per character per day, meaning if you have 2 more alt characters, you can also have them do the quests for 6 more chest rewards.
You can on the Youtube video below how I did and what I got with the Juno rewards chests after accumulating them for a while.