The Event's has already ended tho, however the best way to grind the event is to play RV and collect all present. For Valentine's one, I think it would be best if you play dungeon that u could one shot the mobs and boss because hearts drop from them.
![ค้างคืนโรงเก็บกระสวยอวกาศร้างกลางทะเลทราย [Around The World Ep. 3]](http://i.ytimg.com/vi/E5bWZQhABJE/mqdefault.jpg)
W video
back to back secret is surprising
Whats the easiest way to grind them
The Event's has already ended tho, however the best way to grind the event is to play RV and collect all present. For Valentine's one, I think it would be best if you play dungeon that u could one shot the mobs and boss because hearts drop from them.