When Lee Ting's father Lee Yueh-yu succumbed to motor neuron disease, neither his mother--so weak and frail she couldn't even cook--nor his brother, who was working way out in Hsinchu at the science park, were able to take care of him. Thus the responsibility of being primary caregiver fell to the only remaining family member, the 36-year-old, single, freewheeling Lee Ting.
李鼎的爸爸李樂玉罹患的是運動神經元疾病，也就是俗稱的「漸凍人」。由於一家 4 口中，媽媽一向嬌弱，連做菜都不會，弟弟又遠在竹科工作，因此 36 歲、未婚、工作型態較為自由的李鼎，自然而然成了父親的主要照顧者。