I'm not sure specifically what the'sama sama letter day story' is about as it's not a widely known common story. It could be a very personal or a story from a specific local or cultural context.
Robert Hans Gulick was a Dutch sinologist, known by his Chinese name Gao Luopei. He was the author of "The Legendary Case of Di Renjie of the Tang Dynasty", which told the legendary story of Di Renjie, a famous official of the Tang Dynasty. He was a scholar with extensive research and outstanding academic achievements. He was proficient in fourteen languages and was especially interested in traditional Chinese culture. He met his wife, Ms. Shui Shifang, in China's Sinology culture, and used the background and characters of Chinese case novels to create the novel, The Legend of Di Renjie's Case in Tang Dynasty. Therefore, Robert Hans Gulick (Gaulope) was the author of the story of Di Renjie.
Yes, Hans Zimmer was the composer of the movie 'Dune'. He composed a unique and striking score for the film, including some sharp and harsh tunes, as well as music for the evil Harkonnens. Hans Ji Mo's music was full of warmth and could make the audience feel different emotions. He was an award-winning film composer who had composed music for many famous films, such as The Lion King, Inception, and Dunkirk.
The 'little hans story' is often a case study in psychoanalysis. Little Hans had a phobia, which was analyzed by Freud. One aspect is that it showed the Oedipus complex in a child. Little Hans was afraid of horses, which Freud related to his repressed feelings towards his father.
Their relationship would likely become more solid. Having a baby together means they have a new shared responsibility. They would have to rely on each other more, like when taking care of the baby at night or making important decisions about the baby's future.
The Kaguya-sama manga is indeed finished. It ended after a successful run, leaving fans with memories of an engaging and enjoyable story. The final chapters tied up loose ends and delivered a conclusive ending.