Description: In 2030, climate change brought snow to Taipei's summer skies. Yunzi, a teenager, was consumed by grief after his best friend's unexpected death. His days were filled with sorrow until a trip to Japan introduced him to the enigmatic Brother Jie and the "Time Notebook" he left behind. After that, Yunzi's body undergoes a strange transformation. He gains the ability to travel through a time tunnel--returning to the Tang Dynasty to befriend poets, or journeying to the future to witness the world's turmoil. Who is Brother Jie really? Why can he grant Yunzi this power to traverse time and space? And after experiencing these bizarre events, can Yunzi emerge from the shadow of his friend's death and get his life back on track?