My one major criticism about this manga is that there is absolutely no need for her to be a reincarnation of a modern Japanese person. Literally everything else could stay the same and it would be a much more emotionally compelling story if her only "past life" memory involves the tragic life she led in the previous timeline. This would then be a story of someone who, given a second chance, boldly pursues her own happiness. It would even make that lolicon romance semi-convincing, since "you gave me light and purpose when I had nothing to go on" is a pretty powerful reason for feelings of affinity. It's sort of the case here but not quite.
Otherwise, I am enjoying how good-natured everyone have been so far + the grandmother being an absolute queen. The tiger didn't even need to be around, the people are cute enough.