The Human Lifespan Lasts No Longer Than 100 years, but I, as a Machine, Can Live Upwards of 1000, so Do Not Worry, I will Continue on Alone Here Even After You are Gone

Androids and bonsai trees have one thing in common: they'll both outlast a human's lifespan. Kanna, an android, receives lessons from the "Sensei" who runs the bonsai shop, Kifu Garden. As "Sensei" regaled her with the wonders of bonsai, Kanna would watch with eyes full of curiosity... A long time has passed since then, and Kanna is the only one remaining at Kifu Garden. Though, a new face seems to have come to visit...