Growing Dragon Weapon

Not sure, but if it is this:
http://dnf.qq.com/cp/a20140613bsldll/

3. http://dnf.qq.com/cp/a20140613bsldll/
When you make a new character they will get 2 boxes. One with a free growth weapon(it grows with you like a rental pink and one with a title.

When you clear dungeons above level 20 you can talk to the red bird in Seria's room to claim items the dungeons must be around your level. After 3 dungeons you can get an item that lets you reinforce the event weapon. After 99 dungeons you can get a red paper (Makes the event weapon permanent). If you can get the weapon to + 15, you can trade it for a +12 awakened liberation weapon at the blue bird in Seria's room.

Source: http://aux.gg/forum/dungeon-fighter-chin...-17th.html