Dimensional Rental House

Lin Han helped up a fallen grandfather, and from then on his life became rich (ten) rich (points) and many (difficult) colorful (difficult)... The strange elves from Azeroth, the funny lich from the Frozen Throne, the confused gunmen from Arad's heaven, the protoss warriors from the interstellar battlefield, and some brain-twitching girls from some inexplicable dimensions. These are actually his tenants... WTF?