Complete the following quests:
-The Fierce Black Horn (黒き角竜の猛攻) Hunt the Black Diablos
-Black Rock in the Swamp (湿地帯の黒き鎧) Hunt the Black Gravios
-Blue Sky, Pink Earth (空は蒼、大地は桜) Hunt the Azure Rathalos Hunt the Pink Rathian
-Deny the Silver Rathalos (禁断の地の銀竜) Hunt the Silver Rathalos
-Find the Golden Phantom (幻の金竜を探して) Hunt the Gold Rathian
-The Approaching Gaoren (迫り来る仙高人) Defend the Town from the Shen Gaoren
Edit: these are for mhf2. He said mhfu quests to get the HR7 urgent which you can find by searching google like any normal person......