The artist, Watana, is quite active. The "Upd" in your search likely refers to the most recent chapter where the relationship between the leads hits a significant turning point (specifically moving past just "living together" into more explicit territory). Where to Read and Find Updates If you are looking for the most recent pages:
Most readers use community sites to track "Status: Ongoing." If you see a "New" tag next to the title, it usually indicates the latest chapter has been translated. Why is it Trending? shinseki no ko to o tomari dakara de watana upd
Search for the title on DLsite or FANZA . This is the fastest way to get the update directly from the creator. The artist, Watana, is quite active
The appeal of the series lies in the artwork by , who is known for a very clean, expressive style that balances "cute" and "suggestive" perfectly. The Latest Update (Status 2024) Why is it Trending