AKA: Superstar Express / 愛就宅一起 / Ai Jiu Zhai Yi Qi
Mars (Jiro Wang) is a superstar whose popularity went downhill after a series of negative publicity. His finances went into red alert and he had to find a new place to live. He ended up renting a place from Mo Mo (Rainie Yang), his homebody landlord. He befriended her and her childhood friend Jia Sen (George Hu), a swimming captain with the intelligence of an 8-year-old.

Source; Drama Wiki